Physics MCQ Set 4

Question : Which one of the following can be used to distinguish between the sounds of a note played on piano and violin?

1. Intensity of sound
2. Pitch of sound
3. Quality of sound
4. Loudness

Question : Which of the following properties proves that light behaves as waves
I. Interference
II. Diffraction
III. Refraction

1. I and II are correct only
2. II and III are correct only
3. I and II are correct only
4. I, II and III are correct

Question : Which one of the following properties of light does not depend upon the nature of the medium?

1. Velocity
2. Wavelength
3. Amplitude
4. Frequency

Question : Polaroid can be used

1. To control head light glare in night driving
2. To determine the concentration of optically active substance
3. In curtain-less window to adjust the amount of light
4. All of them

Question : A lens which is thicker in the middle and thinner at the edge is called

1. Concave lens
2. Convex lens
3. Plano-concave lens
4. Convex-concave lens

Question : A straight line passing through center of curvature of the two spherical surfaces of a lens is called

1. Diameter of the lens
2. Radius of the lens
3. Principal axis
4. Principle focus