Physics Questions

Q:

If the angle of incidence formed on a concave mirror at a point is 30 deg then the angle of reflection will be

A) 15 deg B) 30 deg
C) 60 deg D) 90 deg
 
Answer & Explanation Answer: B) 30 deg

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Q:

During _____________ motion of an object along a straight line, the velocity remains constant with time.

A) linear B) translational
C) uniform D) equilibrium
 
Answer & Explanation Answer: C) uniform

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Q:

In the context of non­-conventional energy, what is the meaning of 'OTE' ?

A) Ocean Tidal Energy B) Ocean Thermal Energy
C) Ocean Tidal Electricity D) Other Thermal Energy
 
Answer & Explanation Answer: B) Ocean Thermal Energy

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Q:

The sliding friction is _______________ than the static friction.

A) double B) same
C) greater D) smaller
 
Answer & Explanation Answer: D) smaller

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Q:

Find the resistance (in mega ohm) of a wire of length 8 m, cross sectional area 2 sq.cm and made of a material of resistivity 120 ohm m.

A) 1920 B) 4.8
C) 2.4 D) 960
 
Answer & Explanation Answer: B) 4.8

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Q:

Sound can not travel in which of the following medium?

A) Solid B) Liquid
C) Gas D) Vacuum
 
Answer & Explanation Answer: D) Vacuum

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Q:

Kinetic energy depends on

A) the velocity or speed of the moving body. B) the mass of the moving body
C) the pressure of the moving body D) both mass and velocity of the moving body
 
Answer & Explanation Answer: D) both mass and velocity of the moving body

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Q:

Which of the following device is best suited for measuring the temperature inside metallurgical furnaces?

A) Pyrometer B) Thermocouple
C) Thermometer D) Thermistor
 
Answer & Explanation Answer: A) Pyrometer

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