Physics Past Questions and Answers

Which of the following wave is electromagnetic?

A X-rays
B Sound waves
C Water waves
D Tidal waves

Question 1172:

The distance between two points P and Q, along a wave is 0.05m. If the wave length of the wave is 0.10m, determine the phase angle between P and Q in radians

A 0.1\(\pi\)
B \(\pi\)
C 2\(\pi\)
D 10\(\pi\)

Question 1173:

Which of the following phenomena is not a direct consequence of rectilinear propagation of light?

A Lunar and solar eclipses
B Images of objects in a pin hole camera
C Diffraction of light
D Shadows of opaque object

Question 1174:

An object is placed 10cm in front of a plane mirror. If it is moved 8cm away father away from the mirror, determine the distance of the final image from the mirror

A 2cm
B 9cm
C 16cm
D 18cm

Question 1175:

In which of the following piece of apparatus is the radius of curvature equal to twice the focal length?

A Converging lens
B Diverging lens
C Converging mirror
D Parabolic mirror