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.
(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°.
A spherical mirror produces an image of magnification -1 on a screen placed at a distance of 50 cm from the mirror.
When light of two colours A and B is passed through a plane boundary; A is bent more than B.
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..
Figure shows a ray of light meeting the glass of the window of a car at an angle of incidence of 40Â°.
(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 refracted as shown in figure.
Write the relationship of object distance (u), image distance (v) and focal length (f).
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 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,
A ray of light is incident on a concave mirror after passing through the centre of curvature. What is the angle of incidence?
A light ray enters from medium A to medium B as shown in the figure.
A concave lens made of a material of refractive index
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
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..
What is minimum distance between an object and its real image formed by a convex lens?
Figure shows a ray of light as it travels from medium A to medium B.
You are given water, mustard oil, glycerine and kerosene.
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.
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.
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?
If you want to see an enlarged image of your face, which type of mirror will you use?
Assertion : Higher is the refractive index of a medium or denser the medium
Reason : Refractive index is inversely proportional to..
A 10 mm long awl pin is placed vertically in front of a concave mirror
find the power of concave lens of focal length 2m.
Light enters from air to glass having refractive index 1.50.
Find the focal length of a convex mirror whose radius of curvature is 32cm.
Define 1 D of power of lens.
The radius of curvature of spherical mirror is 20cm. What is its focal length?
You are given kerosene, turpentine and water.
Due to which property of light, sharp shadows of opaque objects are obtained?
Assertion : When a concave mirror is held under water,
Reason : The focal length of a concave mirror is independent
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