Everyday Science MCQs

Correct answer A. 10³ photons of wavelength 2 pm (γ-rays)

Correct answer A. A quantum of electromagnetic radiation

Correct answer D. Electron diffraction

Correct answer A. The angle of scattering is 180°

Correct answer A. Einstein

Correct answer C. It shifts towards shorter wavelengths

Correct answer C. ½mv²max = hf - Φ

Correct answer B. Zero

Correct answer A. Infinite

Correct answer C. ΔE·Δt = h

Correct answer B. The frequency of the incident light and the work function of the metal

Correct answer D. 6.625 × 10⁻²³ N s

Correct answer C. hν/c

Correct answer B. Less than one metre

Correct answer C. Newton's laws of motion are valid in an accelerated (non-inertial) frame of reference

Correct answer D. 25.00 GWh

Correct answer D. γ-rays

Correct answer C. E/c²

Correct answer C. Maximum only

Correct answer B. Drag force of air