A plane mirror is falling vertically as ...

A plane mirror is falling vertically as ssshown in the figure. If S is a point source of light, the rate of increase of the length AB is

directly proportinal to x

constant but not zero

inversely proportional to x

zero

Text Solution

Verified by Experts

The correct Answer is:

AB=PB-PA=2(a+L)-2a
=2L= constant.

Topper's Solved these Questions

REFLECTION OF LIGHT
DC PANDEY ENGLISH|Exercise Level 2 More Than One Correct|6 Videos
REFLECTION OF LIGHT
DC PANDEY ENGLISH|Exercise Level 2 Comprehensive Based|4 Videos
REFLECTION OF LIGHT
DC PANDEY ENGLISH|Exercise Exercise Level 1 Subjective|17 Videos
RAY OPTICS
DC PANDEY ENGLISH|Exercise Medical entrance gallary|76 Videos
REFRACTION OF LIGHT
DC PANDEY ENGLISH|Exercise Level 2 Subjective|21 Videos

Similar Questions

Explore conceptually related problems

A point source of light is placed in front of a plane mirror.

Three identical plane mirrora AB, BC, AC are arranged as shown in the figure. Find the total number of images of a point objectS formed by the three mirrors. (S is at the centre of the system)

A prism having an apex angle of 4^@ and refractive index of 1.50 is located in front of a vertical plane mirror as shown in the figure. A horizontal ray of light is incident on the prism. The total angle through which the ray is deviated is:

Convex and concave mirrors have the same radii of curvature R. The distanc between the mirrors is 2R. At what point on the common optical axis of the mirrors should a point source of light A be placed for the rays to coverage at the point A after being reflected first on the convex and then on the concave mirror?

A bob of mass m suspended by a light string of length L is whirled into a vertical circle as shown in figure . What will be the trajectory of the particle if the string is cut at (a) Point B ? (b) Point C? (c) Point X?

A right-angled prism of apex angle 4^(@) and refractive index 1.5 is located in front of a vertical plane mirror as shown in figure. A horizontal ray of light is falling on the prism. Find the total deviation produced in the light ray as it emerges 2nd time from the prism.

The arrangement for a mirror experiment is shown in figure. S is a point source of frequency 6xx10^(14)Hz . D and C represent the two ends of a mirror placed horizontally and LOM represents the screen. Calculate the number of fringes

A small angled prism of apex angle A=4^@ and refractive index mu=1.5 is placed in front of a vertical plane mirror as shown in figure. If the mirror is rotated through an angle theta, then the light ray becomes horizontal either after the mirror or after second time passing from the prism in opposite direction. The value theta is

Two balls are projected from points A and B in vertical plane as shown in figure. AB is a straight vertical line. The balls can collide in mid air if v_1//v_2 is equal to

DC PANDEY ENGLISH-REFLECTION OF LIGHT-Level 2 Single Correct

An insect of negligible mass is sitting on a block of mass M, tied wit...
Text Solution
|
A plane mirror is falling vertically as ssshown in the figure. If S is...
Text Solution
|
A point object is placed at a distamce of 10 cm anad its real image is...
Text Solution
|
two plane mirror L(1) and L(2) are parallel to each other and 3m apart...
Text Solution
|
A piece of wire bent into an L shape with upright and horizontal porti...
Text Solution
|
A point object at 15 cm from a concave mirror of radius of curvature 2...
Text Solution
|
A ray of light falls on a plane mirror. When the mirror is turned, abo...
Text Solution
|
A person AB of height 170 cm is standing in front of a plane mirror. H...
Text Solution
|
Two blocks each of mass m lie on a smooth table. They are attached to ...
Text Solution
|
Two plane mirrors A and B are aligned parallel to each other as shown ...
Text Solution
|
An object O is just about to strike a perfectly reflecting inclined pl...
Text Solution
|
An elevator at rest which is at 10th floor of a building is having a p...
Text Solution
|
A plane mirror is moving with velocity 4 (hat i) + 4 (hat j) + 8 (hat ...
Text Solution
|
Point A (0, 1 cm) and B (12 cm, 5 cm) are the coordinates of object an...
Text Solution
|
Two plane mirrors AB and AC are inclined at an angle theta = 20^(@). A...
Text Solution
|
A convex mirror of radius of curvature 20 cm is shown in figure. An ob...
Text Solution
|