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 Physics Questions

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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:

A particle experiences constant acceleration for 20 s after starting from rest. If it travels a distance X1, in the first 10 s and distance X2 in the remaining 10 s, then which of the following is true?

 

A) X2 = 2X1 B) X1 = 3X2
C) X2 = X1 D) X2 = 3X1
 
Answer & Explanation Answer: D) X2 = 3X1

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Q:

Why does a piece of cloth, which appears green in sunlight, appear black when it is viewed under red light?

 

A) The cloth completely absorbs red colour wavelength B) It is due to refraction
C) It is the effect of scattering of light D) It is due to Parallax error
 
Answer & Explanation Answer: A) The cloth completely absorbs red colour wavelength

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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:

Definition of Force can be stated from:

A) Newton's second law of motion B) Newton's first law of motion
C) Newton's third law of motion D) Newton's law of gravitation
 
Answer & Explanation Answer: D) Newton's law of gravitation

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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:

Objects float on water based on ___.

A) Newton's third law of motion B) Hooke's law
C) Faraday's law D) Archimedes principle
 
Answer & Explanation Answer: D) Archimedes principle

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Q:

Why does a sprinter keep running even after crossing the finishing line?

A) He wants to make sure that he crosses the line B) Inertia of rest takes some time to make him stop
C) Inertia of motion keeps him moving D) Friction between his shoes and the ground causes him to move beyond the line
 
Answer & Explanation Answer: C) Inertia of motion keeps him moving

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