JEE Main Mock Test 6 - Online MCQ Exam

As compare to longitudinal waves, the transverse waves move through solids at a speed of:

1 Mark(s)

Your Answer:

less than half less than half
less than one less than one
half half
less than quarter less than quarter

Faraday's first law:

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Your Answer:

Voltage determines mass Voltage determines mass
Current determines mass Current determines mass
$m \propto Q$ $m \propto Q$
No relationship No relationship

The probability is measured on a scale from:

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Your Answer:

A) 1 to 10 A) 1 to 10
B) 1 to 5 B) 1 to 5
C) 0 to 1 C) 0 to 1
D) 0 to 10 D) 0 to 10

60% of a number is added to 120, the result is the same number. Find the number?

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Your Answer:

300 300
200 200
400 400
500 500

Sound waves produced at the radio station through microphone changed into:

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Your Answer:

electrical signals electrical signals
heat waves heat waves
light waves light waves
sound waves sound waves

Find the average of \$30, 40, 50, 60$

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Your Answer:

40 40
42 42
45 45
48 48

A can complete a work in \$12$ days and B can complete it in \$18$ days. They work together for \$4$ days, then A leaves. In how many more days will B finish the remaining work?

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Your Answer:

6 days 6 days
8 days 8 days
9 days 9 days
10 days 10 days

Oxidation state of Fe in $\ce{[Fe(CN)6]^4-}$:

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Your Answer:

2 2
3 3
0 0
4 4

Ester formation from acid is:

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Your Answer:

Irreversible Irreversible
Reversible Reversible
Elimination Elimination
Substitution only Substitution only

Balancing redox equations by oxidation number:

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Your Answer:

Find oxidation changes, balance Find oxidation changes, balance
Use inspection Use inspection
Use ion-electron method Use ion-electron method
Random balancing Random balancing

Where should your eye be positioned when reading a measurement on a scale?

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Your Answer:

A) To the left of the mark A) To the left of the mark
B) To the right of the mark B) To the right of the mark
C) Directly above the mark C) Directly above the mark
D) Below the mark D) Below the mark

Radiation produced from TV picture tube is_____________?

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Your Answer:

B-rays B-rays
X-rays X-rays
Far infrared Far infrared
Infrared Infrared

The first step of sewage water treatment is called:

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Your Answer:

primary sewage treatment primary sewage treatment
secondary sewage treatment secondary sewage treatment
activated sludge treatment activated sludge treatment
chlorination chlorination

If θ is said to be an acute angle, and 7 sin2 θ + 3 cos2 θ = 4, then what is the value of tan θ?

1 Mark(s)

Your Answer:

1 1
√3 √3
1/√3 1/√3
None of the above None of the above

What is \$55\%$ of \$100$?

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Your Answer:

55 55
50 50
60 60
65 65

Which of the following group of elements contain the noble gases?

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Your Answer:

s-block s-block
p-block p-block
d-block d-block
f-block Answer f-block Answer

Consider a mixture of 2 moles of He and 2 moles of $H_2$. The speed of sound in the mixture is ($T=300K$):

1 Mark(s)

Your Answer:

$1000 m/s$ $1000 m/s$
$1116 m/s$ $1116 m/s$
$330 m/s$ $330 m/s$
$500 m/s$ $500 m/s$

Petra means ______ ?

1 Mark(s)

Your Answer:

Petrol Petrol
Sediment Sediment
Rock Rock
Fuel Fuel

At what price must kashif sell a mixture of 80 kg sugar at Rs. 6.75 per kg with 120 kg at Rs. 8 per kg to gain 20%?

1 Mark(s)

Your Answer:

Rs. 7.50 per kg Rs. 7.50 per kg
Rs. 8.20 per kg Rs. 8.20 per kg
Rs. 8.85 per kg Rs. 8.85 per kg
Rs. 9 per kg Rs. 9 per kg

The de Broglie wavelength of a particle of momentum $p$ is:

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Your Answer:

$h/p$ $h/p$
$p/h$ $p/h$
$hp$ $hp$
$h/p^2$ $h/p^2$

Soaps are:

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Your Answer:

Esters Esters
Sodium salts of fatty acids Sodium salts of fatty acids
Amides Amides
Alcohols Alcohols

A signal that can have only two discrete values is:

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Your Answer:

digital signal digital signal
analogue signal analogue signal
radio signal radio signal
hybrid signal hybrid signal

If two dice are thrown simultaneously, what is the probability of getting a multiple of 2 on one dice and multiple of 3 on the other dice?

1 Mark(s)

Your Answer:

5/4 5/4
5/12 5/12
11/36 11/36
1/2 1/2

The line of intersection of IV and I quadrants is

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Your Answer:

A) x-axis A) x-axis
B) y-axis B) y-axis
C) vertical axis C) vertical axis
D) none of these D) none of these

(i). a2 – 7a + 12 = 0, (ii). b2 – 3b + 2 = 0 to solve both the equations to find the values of a and b?

1 Mark(s)

Your Answer:

if a < b if a < b
if a ≤ b if a ≤ b
if the relationship between a and b cannot be established.
if a > b if a > b

In addition to the daughter nucleus and an electron or positron, the products of a beta decay

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Your Answer:

Neutrons Neutrons
Neutrino Neutrino
Alpha particle Alpha particle
Proton Proton

A large tanker can be filled by two pipes A and B in 60 and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?

1 Mark(s)

Your Answer:

15 min 15 min
20 min 20 min
27.5 min 27.5 min
30 min 30 min

A chord of length 24 cm of a circle is at a distance of 5 cm from the centre. The radius of the circle is

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Your Answer:

A) 13 cm A) 13 cm
B) 12 cm B) 12 cm
C) 11 cm C) 11 cm
D) 19 cm. D) 19 cm.

If electric field is zero at a point, the potential at that point:

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Your Answer:

Must be zero Must be zero
Must be infinite Must be infinite
Must be constant Must be constant
May be variable May be variable

Any two numbers x and y, written in the form(x,y) is called:

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Your Answer:

binary relation binary relation
domain domain
range range
an ordered pair an ordered pair

A figure bounded by four sides is called a square if:

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Your Answer:

A) each side is equal to 3 cm. A) each side is equal to 3 cm.
B) each angle is equal to 90°. B) each angle is equal to 90°.
C) all sides are equal and each angle is equal to 90°.
D) none of these. D) none of these.

The normal blood pressure range for a human body is______________?

1 Mark(s)

Your Answer:

120 to 80 torr 120 to 80 torr
100 to 80 torr 100 to 80 torr
120 to 60 torr 120 to 60 torr
60 to 140 torr 60 to 140 torr

The longest chord in a circle is known as:

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Your Answer:

diameter diameter
radius radius
area area
midpoint midpoint

Three numbers are in the ratio of 3 : 4 : 6 and their product is 1944. The largest of these numbers is :___________?

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Your Answer:

6 6
12 12
18 18
None of these None of these

Two masses 1g and 4g have the same kinetic energy. The ratio of their momenta is:

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Your Answer:

01:04:00 01:04:00
01:02:00 01:02:00
02:01:00 02:01:00
04:01:00 04:01:00

Consider a car moving on a banked road (angle $\theta$) with radius $r$. If friction coefficient is $\mu$, the maximum safe speed is:

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Your Answer:

$\sqrt{rg \left(\frac{\mu + \tan\theta}{1 - \mu \tan\theta}\right)}$
$\sqrt{rg \tan\theta}$ $\sqrt{rg \tan\theta}$
$\sqrt{rg \mu}$ $\sqrt{rg \mu}$
$\sqrt{rg \left(\frac{1 - \mu \tan\theta}{\mu + \tan\theta}\right)}$

The release of energy from the sun is due to:

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Your Answer:

nuclear fission nuclear fission
nuclear fusion nuclear fusion
burning of gases burning of gases
chemical reaction chemical reaction

The torque depends upon:

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Your Answer:

force only force only
moment arm only moment arm only
mass mass
force and momentum arm force and momentum arm

(a – 3b) (2a + 6b) = _______

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Your Answer:

A) 2a 2 – 18b 2 A) 2a 2 – 18b 2
B) a 2 – 9b 2 B) a 2 – 9b 2
C) 2a 2 – 9b 2 C) 2a 2 – 9b 2
D) a 2 – 18b 2 D) a 2 – 18b 2

5% people of a village in Sri Lanka died by bombardment, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning?

1 Mark(s)

Your Answer:

3800 3800
4200 4200
4400 4400
5500 5500

What is the color of methyl red in the basic solution?

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Your Answer:

yellow yellow
blue blue
pink pink
colorless colorless

Complex ion $\ce{[Fe(CN)6]^3-}$ color is:

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Your Answer:

Colorless Colorless
Yellow Yellow
Deep red Deep red
Pale green Pale green

197 × 203 =

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Your Answer:

A) 39991 A) 39991
B) 39999 B) 39999
C) 6400 C) 6400
D) 7204 D) 7204

The core of a transformer is laminated to reduce energy losses due to__________?

1 Mark(s)

Your Answer:

Eddy currents Eddy currents
Hysteresis Hysteresis
Resistance in winding Resistance in winding
None of these None of these

If $2x + 3 = 11$, find $x$

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Your Answer:

3 3
5 5
6 6
4 4

How many bytes are needed for encoding 2000 bits of data?

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Your Answer:

5 Byte 5 Byte
2 bytes 2 bytes
4 bytes 4 bytes
8 bytes 8 bytes

The human ear responds to intensities in range:

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Your Answer:

10-12Wm-2 to 1Wm-2 10-12Wm-2 to 1Wm-2
15Wm-2 to 18Wm-2 15Wm-2 to 18Wm-2
108Wm-2 to 2Wm-2 108Wm-2 to 2Wm-2
10-3Wm-1 to 10-6Wm-1 10-3Wm-1 to 10-6Wm-1

Carbylamine test is given by:

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Your Answer:

Primary amines Primary amines
Secondary amines Secondary amines
Tertiary amines Tertiary amines
All amines All amines

Natural water is:

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Your Answer:

pure pure
impure impure
non distilled non distilled
distilled distilled

If the pH value is greater than 7, then the solution is:

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Your Answer:

acidic acidic
basic basic
neutral neutral
salty salty

Which of the following will be a better shield against gamma rays ?

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Your Answer:

Ordinary water Ordinary water
Heavy water Heavy water
Lead Lead
Aluminum Aluminum

The mirror formula is:

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Your Answer:

1 ⁄ f + 1 ⁄ p + 1 ⁄ q< 1 ⁄ f + 1 ⁄ p + 1 ⁄ q<
1 ⁄ f = 1 ⁄ p + 1 ⁄ q< 1 ⁄ f = 1 ⁄ p + 1 ⁄ q<
1 ⁄ p + 1 ⁄ q 1 ⁄ p + 1 ⁄ q
1 ⁄ p = 1 ⁄ f x 1 ⁄ q< 1 ⁄ p = 1 ⁄ f x 1 ⁄ q<

The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. The S.I. on the same sum for double the time at half the rate percent per annum is________?

1 Mark(s)

Your Answer:

Rs. 400 Rs. 400
Rs. 500 Rs. 500
Rs. 600 Rs. 600
Rs. 800 Rs. 800

The amount of heat required to raise the temperature of 1 kg mass of that substance through 1K is called its:

1 Mark(s)

Your Answer:

specific energy specific energy
specific heat specific heat
specific stress specific stress
specific density specific density

If the value of 4 cos2θ - 4√3 cos θ + 3 = 0, then what is the value of θ?

1 Mark(s)

Your Answer:

600 600
300 300
450 450
None of the above None of the above

Water that does not give scum with soap is called:

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Your Answer:

hard water hard water
soft water soft water
distilled water distilled water
alcoholic water alcoholic water

The difference between C.I. and S.I. on an amount of Rs. 15,000 for 2 years is Rs. 96. What is the rate of interest per annum?

1 Mark(s)

Your Answer:

8 8
10 10
12 12
Cannot be determined Cannot be determined

The Price of an article is cut by 10%. To restore it to the former value, the new price must be increased by_______?

1 Mark(s)

Your Answer:

10 % 10 %
9 1/11 % 9 1/11 %
11 1/9 % 11 1/9 %
11% 11%

Evaluating Your Answers

JEE Main Mock Test 6 : Question 1 of 58