Physics Questions

Q:

Calculate the pressure (in Pa) if a thrust of 800 N is applied to an area of 16 m2.

A) 128 B) 100
C) 64 D) 50
 
Answer & Explanation Answer: D) 50

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Q:

What is the SI unit of Force?

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

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Q:

Rate of work done is _______.

A) Energy B) Power
C) Momentum D) Impulse
 
Answer & Explanation Answer: B) Power

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Q:

Weight (W) of a body can be given by the formula

A) W = mv B) W = mf
C) W = ms D) W = mg
 
Answer & Explanation Answer: D) W = mg

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Q:

A sound of single frequency is called a

A) Hertz B) Tone
C) Pitch D) Note
 
Answer & Explanation Answer: B) Tone

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Q:

Kelvin (K) is the unit of measurement of ________.

A) Density B) Pressure
C) Mass D) Temperature
 
Answer & Explanation Answer: D) Temperature

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Q:

Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?

A) -4.33 diopters B) 12.33 diopters
C) -12.33 diopters D) 4.33 diopters
 
Answer & Explanation Answer: B) 12.33 diopters

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Q:

Find the current (in A) when a charge of 500 Coulomb flows in 25 seconds.

A) 12500 B) 20
C) 40 D) 6250
 
Answer & Explanation Answer: B) 20

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