Physics MCQs

Correct answer B. Dark

Correct answer B. Photons

Correct answer A. 8 minutes 30 seconds

Correct answer D. Thickness, nature of the film and angle of incidence

Correct answer D. Water

Correct answer A. Diffraction grating

Correct answer C. Diffraction

Correct answer A. No interference fringes are observed

Correct answer C. Black

Correct answer A. Sound waves

Correct answer D. Vibrations take place in a direction perpendicular to the direction of propagation of light

Correct answer C. 2 × 10⁻¹⁰ m

Correct answer B. 5000 Å

Correct answer D. Scattering

Correct answer D. Dark and bright fringes are of equal width

Correct answer C. Coloured fringes

Correct answer D. Destructive interference

Correct answer C. Light from a sodium lamp

Correct answer D. Spherical

Correct answer B. Polarisation