Observe the following incomplete ray diagram of an object where the image A B is formed after refraction from a convex lens.
Rohit wants to have an erect image of an object using a converging mirror of focal length 40cm.
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.
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.
An object is placed at 2 F1 in front of a convex lens. What is the
A spherical mirror produces an image of magnification -1 on a screen placed at a distance of 50 cm from the mirror.
A convex lens made of a material of refractive index n2 is kept in a medium of refractive index n1.
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?
The absolute refractive indices of glass and water are 4/3 and 3/2,
(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..
When an object is placed at a distance of 60cm from a convex spherical mirror, the magnification produced is 1/2.
(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°.
The magnification produced by a spherical mirror is -3.
(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..
Write the relationship of object distance (u), image distance (v) and focal length (f).
Draw a labelled diagram showing how an image of a small size can be projected on large screen
A ray of light is refracted as shown in figure.
(i) In refraction of light through a rectangular glass slab
(ii) What happens when a light ray is incident normally
A light ray enters from medium A to medium B as shown in the figure.
When light of two colours A and B is passed through a plane boundary; A is bent more than B.
A ray of light is incident on a concave mirror after passing through the centre of curvature. What is the angle of incidence?
Assertion : Higher is the refractive index of a medium or denser the medium
Reason : Refractive index is inversely proportional to..
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..
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..
If p,q and r denote the object displace, image distance and the radius of curvature respectively,
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..
Figure shows a ray of light as it travels from medium A to medium B.
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
You are given water, mustard oil, glycerine and kerosene.
Find out from table given below, the medium having highest optical density.
The refractive index of diamond is 2.42.
Assertion : Large concave mirrors are used to concentrate sunlight
Reason : Concave mirror converges the light rays falling on it ..
A ray is incident on a plane mirror as shown in figure.
Define 1 D of power of lens.
Light enters from air to glass having refractive index 1.50.
A concave lens made of a material of refractive index
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..
What is minimum distance between an object and its real image formed by a convex lens?
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