Physics Questions

Q:

Heat transfer by conduction occurs when molecules

A) Collide B) Combine
C) Heated D) None of the above
 
Answer & Explanation Answer: A) Collide

Explanation:

Conduction is the movement of heat through a substance by the collision of molecules. It occurs when two object at different temperatures are in contact with each other. Heat flows from the warmer to the cooler object until they are both at the same temperature.

Heat_transfer_by_conduction_occurs_when_molecules1560488148.jpg image

 

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4 1982
Q:

Change in focal length of eye lens is caused by

A) ciliary muscles B) iris
C) pupil D) retina
 
Answer & Explanation Answer: A) ciliary muscles

Explanation:
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3 1981
Q:

Which of these is true of all simple machines?

A) these make work easier B) work input > work output
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:
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3 1979
Q:

If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is .......

A) 360C B) 216 C
C) 60 C D) 36 C
 
Answer & Explanation Answer: B) 216 C

Explanation:
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0 1979
Q:

Which of these liquids has the highest viscosity?

A) Milk B) Syrup
C) Pineapple juice D) Water
 
Answer & Explanation Answer: B) Syrup

Explanation:

The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness".

Here in the given options, syrup has the highest viscosity.

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3 1976
Q:

A gradual increase in loudness is known as

A) Crescendo B) Timbre
C) Fortissimo D) None of the above
 
Answer & Explanation Answer: A) Crescendo

Explanation:
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4 1974
Q:

The light of distant stars is affected by

A) Interstellar Dust B) The Earth's Atmosphere
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:
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1 1964
Q:

Which of the following has the shortest wavelength?

A) Gamma rays B) Radio waves
C) Microwaves D) Infrared rays
 
Answer & Explanation Answer: A) Gamma rays

Explanation:

Gamma rays has the shortest wavelength and radio waves has the longest wavelength.

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2 1961