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.
Which type of waves is used in sonography-
3.
For a particle undergoing simple harmonic motion, the total energy is directly proportional to its-
4.
The product of conductivity and resistivity of a conductor-
5.
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?
6.
The ray with the least penetrating power is-
7.
When a beam of white light hits an object's surface and all the colors are reflected, how would the surface appear?
8.
The ratio of the speed of X-rays to that of gamma rays-
9.
The electron microscope was invented by-
10.
A laser beam is always-
11.
Nights are cooler in the deserts than in the plains because-
12.
The angular separation between two colors in the spectrum is influenced by-
13.
During the dispersion of white light through a prism, the light wave with the shortest wavelength-
14.
The distance between two consecutive crests in a wave is known as-
15.
What is the maximum number of different electrical combinations possible with 3 equal resistances?
16.
The principle of Bernoulli's theorem is derived from the conservation of-
17.
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?
18.
Gamma ray consists of-
19.
Learned Indian classical vocalists do not prefer the accompaniment of a harmonium because-
20.
The velocity of sound increases when-
21.
Which of the following is not a vector quantity?
22.
A water tank seems less deep when observed from above because of-
23.
The energy that can be generated by utilizing the heat stored beneath the Earth's surface is referred to as-
24.
A body moving with a constant speed along a curved path experiences an acceleration that is-
25.
The resistance of an ideal voltmeter is-
