When a plane mirror is placed horizontally on levelled ground at a distance of 40 m from the foot of a tower, the top of the water..
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..
If the magnification of a body of size 1 m is 2. What is the size of the image?
(i) An object 1 cm high produces a real image 1.5cm high when placed at a distance of 15cm from a concave mirror.
(ii) Write two u..
The refractive index of diamond is 2.42 and that of glass is 1.52.
The absolute refractive indices of glass and water are 4/3 and 3/2,
When light of two colours A and B is passed through a plane boundary; A is bent more than B.
Write the relationship of object distance (u), image distance (v) and focal length (f).
Arrange air, glass and water in terms of descending order of refractive index.
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.
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) 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..
(i) In refraction of light through a rectangular glass slab
(ii) What happens when a light ray is incident normally
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?
(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°.
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..
If p,q and r denote the object displace, image distance and the radius of curvature respectively,
Figure shows a ray of light meeting the glass of the window of a car at an angle of incidence of 40Â°.
A concave lens made of a material of refractive index
A ray of light is refracted as shown in figure.
The magnification produced by a spherical mirror is -3.
Rohit wants to have an erect image of an object using a converging mirror of focal length 40cm.
Where is the image formed when an object is at large distance from a concave mirror?
What is minimum distance between an object and its real image formed by a convex lens?
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..
Assertion : Large concave mirrors are used to concentrate sunlight
Reason : Concave mirror converges the light rays falling on it ..
Find out from table given below, the medium having highest optical density.
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
A ray is incident on a plane mirror as shown in figure.
If you want to see an enlarged image of your face, which type of mirror will you use?
The radius of curvature of spherical mirror is 20cm. What is its focal length?
Find the focal length of a convex mirror whose radius of curvature is 32cm.
The refractive index of diamond is 2.42.
Assertion : Higher is the refractive index of a medium or denser the medium
Reason : Refractive index is inversely proportional to..
Light enters from air to glass having refractive index 1.50.
Define 1 D of power of lens.
Which of the following lenses would you prefer to
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