1.
At what distance should a girl stand in front of a concave spherical mirror with a radius of 120 cm to see an erect image of her face magnified four times its natural size?
2.
What is the maximum number of different electrical combinations possible with 3 equal resistances?
3.
A laser beam is always-
4.
The ratio of the speed of X-rays to that of gamma rays-
5.
A body moving with a constant speed along a curved path experiences an acceleration that is-
6.
The principle of Bernoulli's theorem is derived from the conservation of-
7.
A water tank seems less deep when observed from above because of-
8.
When a bullet strikes and becomes embedded in a stationary solid block placed on a frictionless horizontal surface, which physical quantity remains conserved during this event?
9.
The resistance of an ideal voltmeter is-
10.
When a beam of white light hits an object's surface and all the colors are reflected, how would the surface appear?
11.
The ray with the least penetrating power is-
12.
Learned Indian classical vocalists do not prefer the accompaniment of a harmonium because-
13.
The energy that can be generated by utilizing the heat stored beneath the Earth's surface is referred to as-
14.
Gamma ray consists of-
15.
During the dispersion of white light through a prism, the light wave with the shortest wavelength-
16.
The distance between two consecutive crests in a wave is known as-
17.
Which type of waves is used in sonography-
18.
The product of conductivity and resistivity of a conductor-
19.
If a shell following a parabolic trajectory due to gravity explodes, what happens to the motion of the center of mass of the resulting fragments?
20.
The angular separation between two colors in the spectrum is influenced by-
21.
For a particle undergoing simple harmonic motion, the total energy is directly proportional to its-
22.
The velocity of sound increases when-
23.
The electron microscope was invented by-
24.
Nights are cooler in the deserts than in the plains because-
25.
Which of the following is not a vector quantity?
