A concave mirror of focal length 15 cm f...

A concave mirror of focal length 15 cm forms an image twice the size of the object. If the image is virtual, the distance of object is

45 cm

30 cm

7.5 cm

22.5 cm

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

REFLECTION OF LIGHT
CHHAYA PUBLICATION|Exercise VERY SHORT ANSWER TYPE QUESTION|48 Videos
REFLECTION OF LIGHT
CHHAYA PUBLICATION|Exercise SHORT ANSWER TYPE QUESTION -I|9 Videos
REFLECTION OF LIGHT
CHHAYA PUBLICATION|Exercise MCQ-1 [Single Option Correct]|2 Videos
QUESTION PAPER OF WBCHSE 2019
CHHAYA PUBLICATION|Exercise PART- B (SECTION-II)|4 Videos
REFRACTION OF LIGHT
CHHAYA PUBLICATION|Exercise CBSE SCANNER|11 Videos

Similar Questions

Explore conceptually related problems

A concave mirror of focal length 0.15 m forms an in image doubled of the linear dimension of the object. If the image is virtual then the object distance—

An object is kept in front of a concave mirror of focal length 15 cm. The image formed is three times the size of the object. Calculate two possible distances of the object from the mirror.

An object is placed in fron of a concave mirror of focal length 20cm. The image formed is three times the size of the object. Calculate the two possible distances of the object from the mirror.

An object is placed at a distance of 20 cm in front of a concave mirror of focal length 10 cm. Determine the position of the image. What is the ratio of the size of the image to the size of the object ?

A concave mirror forms a virtual image of twice the size of the object placed at a distance of 10 cm from the mirror. If the object is placed at a distance of 30 cm from the mirror where will the image be formed? Formed? What will be the nature of the image formed?

A concave mirror forms a real image of height twice the size of the object. Now the object and the screen are so moved that a real image of height three times the size of the object is formed. If the displacement of the screen is 18 cm, determine the displacement of the object and the focal lenght of the mirror.

An object is placed perpendicularly on the principal axis of a concave mirror of focal length 25 cm and an image is formed at a distance of 100 cm in front of the mirror. Determine the position of the object and mangnification of the image.

An object is placed at a distance of 40 cm from a concave mirror of focal length 15 cm. If the object is displaced through a distance of 20 cm towards the mirror, the displacement of the image will be

An object of height 2.5 cm placed perpendicularly on the principle axis of a concave mirror of focal length f at a distance of 3/4f . What will be the nature of the image of the object and its height?

An object is placed at a distance of 60 cm in front of a concave mirror of focal length 30 cm. Where will the image be formed? If the object apporoaches d cm towards the mirror, then how far will the image be shifted?

CHHAYA PUBLICATION-REFLECTION OF LIGHT-EXERICISE (MCQ)

A concave mirror has radius of curvature r and focal length f. An obje...
Text Solution
|
A concave mirror has radius of curvature r and focal length f. An obje...
Text Solution
|
A concave mirror has radius of curvature r and focal length f. An obje...
Text Solution
|
A mirror forms a real image of unit magnification. Nature of the mirro...
Text Solution
|
If an object is placed at a distance of 40 cm from a concave mirror of...
Text Solution
|
A person standing in fornt of a mirror finds his image larger than him...
Text Solution
|
A convex mirror has focal length f. An object is placed at a distance ...
Text Solution
|
An object is placed at a distance of 20 cm from a concave mirror of fo...
Text Solution
|
An radius of curvature of a convex mirror is 40 cm and the size of th...
Text Solution
|
A concave mirror of focal length f (in air) is immersed in water (mu ...
Text Solution
|
A concave mirror of focal length 15 cm forms an image twice the size o...
Text Solution
|
The image of a point object placed at 10 cm from a concave mirror, is...
Text Solution
|
A small linear object of length b is situated along the axis of a conc...
Text Solution
|
If the object distance and image distance from the focus of a spherica...
Text Solution
|
An object is placed at a distance x from the principal focus of a sphe...
Text Solution
|
If a graph is drawn taking x and y as the object distance and the imag...
Text Solution
|
A rod is standing in front of a mirror on its axis. The virtual image ...
Text Solution
|
Image that indicate positive magnification is
Text Solution
|
An object is approaching a convex mirror. The ratio of the velocity of...
Text Solution
|
A car is fitted with a convex side-view mirror of focal length 20 cm. ...
Text Solution
|