This test consists of AIEEE physics practice questions to help you practice for the real AIEEE Physics section.
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If the width of slit S in Young’s double slit experiment is gradually increased:
Bright fringes become less bright, dark fringes darker.
Bright fringes become brighter and dark fringes become darker.
Bright fringes become less bright, dark fringes become less dark
Bright fringes become brighter, dark fringes lighter.
A concave mirror has a focal length of 20 cm. The position(s) of an object for which the image-size is double of the object-size.
30 cm from the mirror
None of the above
50 cm from the mirror
40 cm from the mirror
A lens is placed between a source of light and wall. It forms images of area A1 and A2 on the wall for its two different positions. The area of the source was:
A concave mirror of radius 25 cm is kept on a horizontal table. Water (refractive index = 4/3) is poured into it upto a height 5 cm. Where should an object be placed so that its image is formed on itself ?
15 cm
50 cm
55 cm
30 cm
A beam of width t is incident at 45 degrees on an air-water boundary. The width of the beam in water is:
m/t
mt
none of these
When an object lies at the focus of a concave mirror, the position of the image formed and its magnification are respectively:
Infinity and unity
Centre of curvature and infinity
Infinity and infinity.
Infinity and zero
A cubic container is filled with a liquid whose refractive index increases linearly from top to bottom. Which of the following represents the path of a ray of light inside the liquid
Locate the image formed by refraction in the situation shown in figure.
40cm
20cm
60cm
30cm
A narrow monochromatic beam of light of intensity I is incident on a glass plate as shown in figure. Another identical glass plate is kept close to the first one and parallel to it. Each glass plate reflects 25% of the light incident on it and transmits the remaining. Then the ratio of the maximum to minimum intensities in the interference pattern formed by the two beams obtained after one reflection at each plate is:
16 : 9
4: 1
7 : 1
49 : 1
A reflecting surface is represented by the equation x2 + y2 = a2. A ray traveling in negative x-direction is direction towards positive y-direction after reflection from the surface at point P. Then co-ordinates of point P are
(0.6a, 0.8a)
(0.8a, 0.6a)
(a, 0)
Focal length of a thin convex lens is 30 cm. At a distance of 10 cm from the lens there is a plane-refracting surface of refractive index 3/2. Where will the parallel rays incident on lens converge?
At a distance of 45 cm from the lens
At a distance of 25 cm from the lens
At a distance of 40 cm from the lens
At a distance of 27.5 cm from the lens
If f is the focal length of a lens in air, the power of the lens (refractive index, m), when immersed in water (refractive index,m0) is:
Find the angle of minimum deviation for an equilateral prism made of a material of refractive index 1.732. What is the angle of incidence for this deviation ?
60
0
30
90
A point object O is placed at a distance of 20 cm from a convex lens of focal length 10 cm as shown in figure. At what distance x from the lens should a concave mirror of focal length 60 cm, be placed so that final image coincides with the object
final image can never coincide with the object in the given conditions
10cm
A plano-convex lens fits exactly into a plano-concave lens. Their plane surface are parallel to each other. If the lenses are made of different materials of refractive indices m1 and m2 are R is the radius of curvature of the curved surface of the lenses, then focal length of the combination is
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