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Q:

If the frequency of a sound wave of given velocity is increased , how will it affect its wavelength?

A) Its wavelength will increase B) The wavelength will not be affected
C) Its wave length will decrease D) Wavelength will keep increasing and decreasing alternately

Answer:   C) Its wave length will decrease



Explanation:
Subject: Physics
Exam Prep: Bank Exams
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As an object falls freely its ___________________.

 

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Answer & Explanation Answer: B) 37.5

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What is the standard room temperature in Kelvin?

 

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Answer & Explanation Answer: A) 98 K

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An object, starting from rest, moves with constant acceleration of 4 m/s2. After 8 s, its speed is

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1 watt is equal to 1 ____________

 

A) J s-1   B) J s
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Answer & Explanation Answer: A) J s-1  

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A body is initially moving with a velocity of 10 m/s. It undergoes an acceleration of 2 m/s2 for 5 seconds. Find the displacement (in m) of this body in these 5 seconds.

 

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Answer & Explanation Answer: D)  75

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