The figure shows an overhead view of a c...

The figure shows an overhead view of a corridor with a plane mirror MN mounted at one end. A burglar B sneaks along the corridor directly towards the centre of the mirror. If d = 3m, how far from the mirror will the burglar be when the security guard S can first see him in the mirror ? ---

3.0m

4.5m

6.0m

1.5m

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

NTA JEE MOCK TEST 32
NTA MOCK TESTS|Exercise PHYSICS|25 Videos
NTA JEE MOCK TEST 34
NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A point source of light S, placed at a distance 60 cm infront of the centre of a plane mirror of width 50 cm, hangs vertically on a wall. A man walks infront of the mirror along a line parallel to the mirror at a distance 1.2 m from it (see in the figure). The distance between the extreme points where he can see the image of the light source in the mirror is .......... cm.

A point source of light B is placed at a distance L in front of the centre of a mirror of width d hung vertically on a wall. A man walks in front of the mirror along a line parallel to the mirror at a distance 2L from it as shown in fig. The greatest distance over which he can see the image of the light source in the mirror is

A point source of light B is placed at a distance L in front of the centre of a mirror of width d hung vertically on a wall. A man walks in front of the mirror along a line parallel to the mirror at a distance 2L from it as shown. The greatest distance over which he can see the image of the light source in the mirror is

A point source of light B is placed at a distance L in front of the center of a mirror of width d hung vertically on a wall. A man walks in front of mirror along a line parallel to the mirror at a distance 2L from it as shown in Figure. The greatest distance over which he can see the image of the light source in the mirror is

A plane mirror is placed with its plane at an angle 30^(@) with the y-axis. Plane of the mirror is perpendicular to the xy-plane and the length of the mirror is 3m. An insect moves along x-axis starting from a distant point, with speed 2 cm/s. The druation of the time for which the insect can see its shown image in the mirror is:

OP is the principal axis of a concave mirror M1. Just below the axis a plane mirror M2 is placed at a distance d from the concave mirror. Two small pins A and B are placed on the principal axis as shown. By moving M2 and changing d, the virtual image of A formed in mirror M1 and the virtual image of B formed in mirror M2 were made to coincide. (a) Calculate the focal length of the concave mirror if it was found that the images coincide when separation between the mirrors was d_(0) . (b) Can the two virtual images be observed by the eye simultaneously?

A point source of light S, placed at a distance L in front of the centre of a mirror of width d, hangs vertically on a wall. A man walks in front of the mirror along a line parallel to th mirror at a distane 2L form it as shown.The greatest distance over which he can see the image of the light source in the mirror is (a) d//2 (b) d (c) 2d (d) 3 d.

A point source of light S is placed at a distance 10 cm in front of the centre of a mirror of width 20 cm suspended vertically on a wall. An insect walks with a speed 10cm//s in front of the mirror along a line parallel to the mirror at a distance 20 cm from it as shown in figure. find the maximum time during which the insect can see the image of the source S in the mirror.

NTA MOCK TESTS-NTA JEE MOCK TEST 33-PHYSICS

A 10 muF capacitor and a 20 muF capacitor are connected in series acro...
Text Solution
|
The equivalent capacitance between A and B, where two concentric spher...
Text Solution
|
The escape velocity from the earth is about 11 km/s. The escape veloci...
Text Solution
|
A monatomic ideal gas sample is given heat Q. One half of this heat is...
Text Solution
|
A particle is projected directly along a rough plane of inclination th...
Text Solution
|
When a string is divided into three segments of lengths l(1),l(2) a...
Text Solution
|
The magnetic field of a plane electromagnetic wave is given by: vec(B)...
Text Solution
|
U - tube moves with a constant speed parallel to the surface of a sta...
Text Solution
|
The figure shows an overhead view of a corridor with a plane mirror MN...
Text Solution
|
A solid spherical ball of mass m is released from the topmost point of...
Text Solution
|
A diode AM detector with the output circuit consisting of R=1 kOmega a...
Text Solution
|
A working transitor with its three legs marked P, Q and R is tested us...
Text Solution
|
In an energy recycling process, X g of steam at 100^(@)C becomes water...
Text Solution
|
In a simple pendulum experiment for determination of acceleration due ...
Text Solution
|
A stationary wave of amplitude A is generated between the two fixed en...
Text Solution
|
A solid cylinder is kept on one edge of a plank of same mass and lengt...
Text Solution
|
The circuit shown in fig 5.230 contains three resistors R1 =100Omega,...
Text Solution
|
The magnetic field induction at the centre of a current - carrying cir...
Text Solution
|
A body of mass m = 10 kg is attached to a wire of length 0.3m. The max...
Text Solution
|
A beam of light consists of two wavelengths, 6300Å and 5600Å. This bea...
Text Solution
|