JEE PHYSICS MCQ: PHYSICAL WORLD [Dont Select]

1 Easy

1 of 1

Understanding +4 | -1

Science is exploring, ...x... and ...y... from what we see around us. Here, x and y refer to

View answer and explanation

Correct option: B

Experiment, predict

Option A is correct because the photoelectric effect occurs only when the incident radiation's frequency exceeds the threshold frequency of the metal.

More Questions from PHYSICAL WORLD [Dont Select]

Practice All Chapter MCQs →

Which of the following statement is correct? Gravitational force dominates in terrestrial phenomena because Natural science does not include Prior to the advent of the Einstein’s theory of relativity, it was concluded that Assertion: In universe, gravitational force dominates in long distance and electric force dominates in short distance.

Reason: For gravitational force

\propto \frac{\text { (mass) }^2}{\text { distance }^2}

and electric force

\propto \frac{\text { charge }^2}{\text { distance }^2}

The theory of solar system, in which the sun occupies the central position, is known as