Rohit wants to have an erect image of an object using a converging mirror of focal length 40cm.
A student wants to project the image of a candle flame on a screen 48 cm in front of a mirror by keeping the flame at a distance o..
When an object is placed at a distance of 60cm from a convex spherical mirror, the magnification produced is 1/2.
A spherical mirror produces an image of magnification -1 on a screen placed at a distance of 50 cm from the mirror.
(i) The refractive index of kerosene is 1.44,"
(ii) A ray of light strikes a glass slab at an angle of incidence equal to 30Â°.
Arrange air, glass and water in terms of descending order of refractive index.
The refractive index of diamond is 2.42 and that of glass is 1.52.
Figure shows a ray of light meeting the glass of the window of a car at an angle of incidence of 40Â°.
Draw a labelled diagram showing how an image of a small size can be projected on large screen
A ray of light is incident on a concave mirror after passing through the centre of curvature. What is the angle of incidence?
A ray of light is refracted as shown in figure.
A concave mirror of focal length f can form a magnified, erect as well as an inverted image of an object place in front of it.
The magnification produced by a spherical mirror is -3.
(i) Draw a ray diagram to show the refraction of light
(ii) If the refractive index of glass for light going from air to glass is..
Find out from table given below, the medium having highest optical density.
Beams of light are incident through the holes A and B and emerge out of box through the holes c and d respectively as shown in the..
A concave lens made of a material of refractive index
Light enters from air to glass having refractive index 1.50.
The refractive index of diamond is 2.42.
A light ray enters from medium A to medium B as shown in the figure.
An object of height 8 cm is placed at a distance of 40cm infront of a convex lens of focal length 20cm. The size of image is
Assertion : Large concave mirrors are used to concentrate sunlight
Reason : Concave mirror converges the light rays falling on it ..
What is minimum distance between an object and its real image formed by a convex lens?
If p,q and r denote the object displace, image distance and the radius of curvature respectively,
If the image formed by a mirror for all positions of the object placed in front of it is always erect and diminished, what type of..
Find the focal length of a convex mirror whose radius of curvature is 32cm.
Which of the following lenses would you prefer to
Assertion : Higher is the refractive index of a medium or denser the medium
Reason : Refractive index is inversely proportional to..
A ray is incident on a plane mirror as shown in figure.
Where is the image formed when an object is at large distance from a concave mirror?
The radius of curvature of spherical mirror is 20cm. What is its focal length?
You are given kerosene, turpentine and water.
Define 1 D of power of lens.
find the power of concave lens of focal length 2m.
An object is placed at a distance of 10m from a convex mirror
A 10 mm long awl pin is placed vertically in front of a concave mirror
Figure shows a ray of light as it travels from medium A to medium B.
The path of a ray of light coming from air passing through a rectangular glass slab traced by four students shown as A, B, C and d..
You are given water, mustard oil, glycerine and kerosene.
Due to which property of light, sharp shadows of opaque objects are obtained?
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