SSC
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
WHAT IS f IF YOU HAVE AN OBJECT 2 M FROM THE CONCAVE MIRROR AND THE IMAGE IS 4 M FROM THE MIRROR.
|
|
2.0 M
|
|
|
0.67 M
|
|
|
-1.3 M
|
|
|
-4.0 M
|
Explanation:
Detailed explanation-1: -Answer: The focal length is 1.3m.
Detailed explanation-2: -A concave mirror of focal length 1.5m forms an image of an object placed at a distance of 40cm. Find the position and nature of the image. ⇒ v = 0.5454m = 54.54cm (1m = 100 cm). Since v = 54.54cm which is positive hence image is behind the mirror.
Detailed explanation-3: -A 2 cm high object is placed at a distance of 32 cm from a concave mirror. The image is real, inverted and 3 cm in size.
There is 1 question to complete.