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.
An object is placed at 2 F1 in front of a convex lens. What is the
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.
If the magnification of a body of size 1 m is 2. What is the size of the image?
(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..
A convex lens made of a material of refractive index n2 is kept in a medium of refractive index n1.
A spherical mirror produces an image of magnification -1 on a screen placed at a distance of 50 cm from the mirror.
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..
The absolute refractive indices of glass and water are 4/3 and 3/2,
(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°.
When an object is placed at a distance of 60cm from a convex spherical mirror, the magnification produced is 1/2.
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).
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
Draw a labelled diagram showing how an image of a small size can be projected on large screen
When light of two colours A and B is passed through a plane boundary; A is bent more than B.
A light ray enters from medium A to medium B as shown in the figure.
A ray of light is incident on a concave mirror after passing through the centre of curvature. What is the angle of incidence?
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..
Assertion : Higher is the refractive index of a medium or denser the medium
Reason : Refractive index is inversely proportional to..
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..
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
Figure shows a ray of light as it travels from medium A to medium B.
You are given water, mustard oil, glycerine and kerosene.
Find out from table given below, the medium having highest optical density.
Assertion : Large concave mirrors are used to concentrate sunlight
Reason : Concave mirror converges the light rays falling on it ..
A concave lens made of a material of refractive index
Light enters from air to glass having refractive index 1.50.
A ray is incident on a plane mirror as shown in figure.
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..
The refractive index of diamond is 2.42.
What is minimum distance between an object and its real image formed by a convex lens?
find the power of concave lens of focal length 2m.
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