Highly polished silvery surfaces are?

A. poor absorbers and poor emitters of radiation B. poor absorbers and good emitters of radiation C. good absorbers and poor emitters of radiation D. good absorbers and good emitters of radiation Correct Answer: Option B B. poor absorbers and good emitters of...

The velocity ratio of an inclined plane?

A. increases with increase in the angle of inclination B. increases with a decrease in the angle of inclination C. decreases with a decrease in the angle of inclination D. is independent of the angle of inclination Correct Answer: Option A A. increases with increase...

From Newton’s first law of motion, ________?

A. a body can only undergo translational motion B. once a body remains at rest no force acts on it C. the net force acting in uniform linear motion is zero D. a body’s inertia is its weight Correct Answer: Option C C. the net force acting in uniform linear...

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