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SSC > Physics

Explore popular questions from Physics for SSC. This collection covers Physics previous year SSC questions hand picked by experienced teachers.

Q 1.

Correct2

Incorrect-0.5

What George Pullman invented?

Sleeping (railway) car

B

Airship

C

Box car (railway)

D

Air brakes

Q 2.

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What Frank Whittle invented?

A

Radar

B

Ethyl gasoline

C

Sonar

Jet propulsion

Q 3.

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When was the Raggedy Ann doll patented?

1915

B

1920

C

1919

D

1911

Q 4.

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FROZEN FOOD - Who discovered the first practical method of freezing food?

C. Birdseye

B

F. Rozenosh

C

G. Findus

D

R. Scott

Q 5.

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Who synthesized the first wholly artificial gene?

Hargobind Khorana

B

J.J. Thompson

C

Benjamin Franklin

D

Meghnad Saha

Q 6.

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What toy did George Lerner create for Hasbro company in 1952?

A

Sit and Spin

B

Talking baby doll

Mr. Potato Head

D

Hula hoop

Q 7.

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Sound of frequency below 20 Hz is called

A

audio sounds

infrasonic

C

ultrasonic

D

supersonics

Q 8.

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Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?

A

Pressure and Young's modules

B

Planck's constant and Angular momentum

Impulse and moment of force

D

Force and rate of change of linear momentum

Q 9.

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Metals are good conductors of electricity because

they contain free electrons

B

the atoms are lightly packed

C

they have high melting point

D

All of the above

Q 10.

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Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2

A

0.14 m/s

B

140 m/s

C

1.4 km/s

14 m/s

Q 11.

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Consider the following statements with reference to X-rays :
1. They produce heat when absorbed by matter
2. They are generated when fast moving electrons strike a metal target
3. They can penetrate through a thin sheet of aluminium
Which of the statements given above are correct ?

1,2 and 3

B

1 and 2

C

2 and 3

D

1 and 3

Q 12.

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Consider the following statements :
1. Horsepower is a bigger unit of power than kilowatt
2. One thousand crore is equal to {tex} 10^{10} {/tex}
3. One acre is slightly greater than 5000 square metres
Which of the statements given above is/are correct ?

1 and 2

B

2 only

C

1 and 3

D

2 and 3

Q 13.

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Barium in a suitable form is administered t patients before and X-ray examination of the stomach, because :

A

barium allows X-rays to pass through the stomach on account of its
transparency to X-rays

B

barium compound, like magnesium sulphate helps in cleaning the stomach
before X-ray examination

barium is a good absorber of X-rays and this helps the stomach to appear clearly in contrast with the other regions in the picture

D

barium salts are site in colour and this helps the stomach to appear clearly
in contrast with other regions in the picture

Q 14.

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Which of the following is the correct sequence of the regions of the sun as one moves from its core to the surface?
1. Photosphere
2. Chromosphere
3. Convection zone
4. Corona

1, 2, 3, 4

B

1, 3, 4, 2

C

2, 3, 4, 1

D

2, 1, 3, 4

Q 15.

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If earth were 3 times as far from the sun as it is now, how would the gravitational attraction compare with its present value?

A

The gravitational attraction would be 9 times its present amount

B

The gravitational attraction would be double its present amount

The gravitational attraction would be 1/9 of its present amount

D

None of the above would be true

Q 16.

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What is the correct ascending order for frequencies of the following
radiations?
1. Visible 2. X-rays 3. Ultraviolet 4. Radio Waves

A

1, 3,, 2, 4

B

3, 2, 4, 1

4, 1, 3, 2

D

4, 3, 1, 2

Q 17.

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Which of the following is used as a coolant in nuclear reactors?

A

Heavy water

B

Cadmium

Liquid sodium

D

Graphite

Q 18.

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Incorrect-0.5

What is the wavelength of visible spectrum?

A

1300-3000 A

3900-7600 A

C

7800-8000 A

D

8500-9800 A

Q 19.

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Which of the following laws is explained by the statement that matter can neither be created for destroyed?

A

Law of Conservation of Energy

B

Le Chatelier's principle

Law of Conservation of Mass

D

Law of Osmosis

Q 20.

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Recoil of a gun is an example of :

A

conservation of mass

B

conservation of energy

C

conversion of P.E. into K.E.

conservation of linear momentum

Q 21.

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lf a body is taken from the earth to the moon

A

its mass will be different but weight will remain the same

B

both mass and weight will be different

its mass will remain the same but weight will be different

D

its mass and weight will remain unchanged

Q 22.

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A horse pulling a tonga moves forward due to the force exerted by

A

the tonga on the horse

B

the horse on the tonga

C

the horse on the ground with his feet

the ground on the horse's feet

Q 23.

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When a ship enters a sea from a river

it rises a little

B

it sinks a little

C

it remains at the same level

D

it rises or sinks depending on the material it is made of

Q 24.

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Inside an aeroplane, flying at a high altitude

A

the pressure is the same as that outside

normal atmospheric pressure is maintained by the use of air pumps

C

the pressure inside is less than the pressure outside

D

normal humidity and partial vacuum are maintained

Q 25.

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Which one of the following would a hydrogen balloon find easiest to lift?

A

1 kg of water

B

1 kg of copper

C

1 kg of loosely packed feathers

all the same