Physics Questions

Q:

Which of the following Newton's laws of motion can explain why a ball thrown at a wall rebounds?

A) 1st law of motion B) 2nd law of motion
C) 3rd law of motion D) Neither of the laws
 
Answer & Explanation Answer: C) 3rd law of motion

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Q:

In a longitudinal wave, the distance between two consecutive compressions and two consecutive refractions is called

A) Matter B) Wavelength
C) Magnitude D) Energy
 
Answer & Explanation Answer: B) Wavelength

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Q:

A unit of power is called a

A) Joule B) Pascal
C) Newton D) Watt
 
Answer & Explanation Answer: B) Pascal

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Q:

A charge of 2 C passes from one point to the other in a circuit. If the potential difference between the two points is 5 V, the amount of work done is

A) 5 J B) 10 J
C) 2.5 J D) 0.4 J
 
Answer & Explanation Answer: B) 10 J

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Q:

The forces between two bodies are always equal and opposite. This idea is stated in the form of Newton's

A) first and second law of motion B) first law of motion
C) third law of motion D) second law of motion
 
Answer & Explanation Answer: C) third law of motion

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Q:

Which of the following statements is true with respect to Glucometer?

A) It is a medical device B) It is a non-medical device
C) It is used to measure oxygen level in the air D) It is used to measure nitrogen level in the air
 
Answer & Explanation Answer: A) It is a medical device

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Q:

To pinpoint a Criminal, Forensic Department uses the technique called?

A) DNA Editing B) DNA Splicing
C) DNA Fingerprinting D) DNA Amplification
 
Answer & Explanation Answer: C) DNA Fingerprinting

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Q:

What is the SI unit of Charge?

A) Coulomb B) Amperes
C) Watts D) Joules
 
Answer & Explanation Answer: A) Coulomb

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