Physics Questions

Q:

Which of the following is a renewable resource of energy?

A) Hydrogen fuel B) Wind energy
C) Solar energy D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.

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Q:

What does it mean if a micrograph is false colored?

Answer

If a micrograph is false-colored, it means that the computer has created the colour for the object since we know that the electron microscopes sees only black and white colours.

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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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Q:

Increased wind speed is accompanied by a reduced air _____________.

A) humidity B) pressure
C) density D) aridity
 
Answer & Explanation Answer: B) pressure

Explanation:
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Q:

For an object, the state of rest is considered to be the state of ______ speed.

A) increasing B)
C) inverse D) zero
 
Answer & Explanation Answer: D) zero

Explanation:
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Q:

What are the two kinds of Rotatory motion?

A) Spin and Vibrational motion B) Spin and Projectile motion
C) Spin and Orbital motion D) Spin and Translatory motion
 
Answer & Explanation Answer: C) Spin and Orbital motion

Explanation:
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Q:

Which among the following temperature scale is based upon absolute zero?

A) Rankine B) Celsius
C) Fahrenheit D) Kelvin
 
Answer & Explanation Answer: D) Kelvin

Explanation:

Kelvin temperature scale is the temperature scale that is based upon absolute zero.

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Q:

Which vitamin is also called as H vitamin?

A) Vitamin B7 B) Vitamin B12
C) Vitamin B3 D) Vitamin B5
 
Answer & Explanation Answer: A) Vitamin B7

Explanation:

Biotin is a water-soluble B vitamin, also called vitamin B7 and formerly known as vitamin H or coenzyme R.

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