Applied Physics MCQs - Chapter 12

Modern Physics Multiple Choice Questions PDF Download - 1

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The Multiple Choice Question (MCQ Quiz): Rest mass energy of an electron is; "Modern Physics" App Download (Free) with answers 0.511kev, 1.02 mev, 0.511 mev and 2.02 mev to learn certification courses online. Solve modern physics quiz questions, download Google eBook (Free Sample) for ACT test prep classes.

Modern Physics Questions & Answers PDF Download: MCQ Quiz 1

MCQ 1: Rest mass energy of an electron is

A) 1.02 MeV

B) 0.511KeV

C) 0.511 MeV

D) 2.02 MeV

MCQ 2: When K.E_max of photoelectrons is zero, then the frequency of incident photon relative to threshold frequency is

A) less

B) equal

C) greater

D) small

MCQ 3: The mass of 700 N man moving in car at 66 km h^-1 is

A) 70 kg

B) 100 kg

C) infinite

D) zero

MCQ 4: An inertial frame of reference is the frame

A) in which first law of motion is valid

B) in which law of inertia is valid

C) which is not moving with uniform velocity

D) both a and b

MCQ 5: In photocell caesium, coated oxidized silver cathode emits electrons for

A) visible light

B) ultraviolet

C) infrared light

D) x-rays

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