A man standing in front of a spherical mirror, finds his image having a very small head, a fat body and legs of normal size. What type of mirrors are used in these three parts?
1 Answers
Talk Doctor Online in Bissoy App
A 10 mm long awl pin is placed vertically in front of a concave mirror. A 5 mm long image of the awl pin is formed at 30 cm in front of the mirror.
(b) – 20 cm is the correct option.
1 Answers 1 views
A child is standing in front of a magic mirror. She finds the image, the middle portion of her body of the same size and that of the legs smaller.
(c) Concave, plane and convex
1 Answers 1 views
A spherical mirror and a thin spherical lens have each a focal length of −15 cm. The mirror and the lens are likely to be
By convention, the focal length of a concave mirror and a concave lens are taken as negative. Hence, both the spherical mirror and the thin spherical lens are concave in...
1 Answers 1 views
Fill in the blanks in the following. (a) A person 1 m in front of a plane mirror seems to be ________ m away from his image.
(a) A person 1 m in front of a plane mirror seems to be 2 m away from his image. (b) If you touch your left ear with your right hand...
1 Answers 1 views
Image formed by a plane mirror is (a) virtual, behind the mirror and enlarged. (b) virtual, behind the mirror
(b) virtual, behind the mirror and of the same size as the object.
1 Answers 1 views
A concave mirror produces three times (enlarged) magnified real image of an object placed at 10 cm in front of it. Where is the image located?
Here, in case of concave mirror u=10 cm [u, is always negative] v =?;m = - 3 [real image] Now the magnification formula is m= -v/u or -3= -(v/-10) or , v = -30 cm. Image will...
1 Answers 2 views
A spherical mirror and a thin spherical lens have each a focal length of -15 cm. The mirror and lens are likely to be
Concave mirror and concave lens both have negative focal length, choice (c) is correct
1 Answers 1 views
A spherical mirror and a lens have same focal length of - 20 cm. What type of mirror and lens are these?
A concave mirror and concave lens have negative focal length. Hence, both mirror and lens are concave.
1 Answers 1 views
In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
No, to see the reflection, source of light is required. We can see only in the presence of light.
1 Answers 1 views
David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m.
(iii) 6 m Explanation: As David moves 1 m towards the mirror, the image also moves 1 m towards the mirror. Now the distance between David and mirror is 3 m and...
1 Answers 1 views