Physics Mcqs

Physics MCQs

Q. What is the minimum speed required to leave the planet Earth (Escape Velocity)?

(A) 20,000 km/hr

(B) 30,000 km/hr

(C) 40,000 km/hr

(D) 50,000 km/hr

The answer is: (C) 40,000 km/hr ☑

Q. Which method(s) of heat transfer can take place in vacuum?

(A) Conduction

(B) Convection

(C) Radiation

(D) All of the above

The answer is: (C) Radiation ☑

Q. Which electromagnetic radiation transmits the highest photon energy?

(A) Infrared rays

(B) Microwaves

(C) Ultraviolet radiations

(D) Gamma rays

The answer is: (D) Gamma rays ☑

Q. Greenhouse gases absorb ________ radiation.

(A) infrared

(B) microwaves

(C) ultraviolet

(D) gamma

The answer is: (A) infrared ☑</p>