Advertisements
Advertisements
Question
A ray of light passing through centre of curvature of a spherical mirror, after reflection
Options
passes through the focus
passes through the pole
becomes parallel to the principal axis
retraces its own path.
Advertisements
Solution
retraces its own path.
APPEARS IN
RELATED QUESTIONS
No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be ______.
A student obtains a blurred image of a distant object on a screen using a convex lens. To obtain a distinct image on the screen he should move the lens
(A) away from the screen
(B) towards the screen
(C) to a position very far away from the screen
(D) either towards or away from the screen depending upon the position of the object
What type of mirror should be used as a shop security mirror?
Why can you not use a concave mirror as a rear-view mirror in vehicles?
A man standing in front of a special mirror finds his image having a very small head, a fat body and legs of normal size. What is the shape of:
(a) top part of the mirror?
(b) middle part of the mirror?
(c) bottom part of the mirror?
Give reasons for your choice.
An object placed 20 cm in front of a mirror is found to have an image 15 cm (a) in front of it, (b) behind the mirror. Find the focal length of the mirror and the kind of mirror in each case.
A driver uses a convex mirror as a rearview mirror. Explain the reason with the help of a ray diagram.
To determine the focal length of a convex lens by obtaining a sharp image of a distant object we generally follow the following steps which are not in proper sequence.
(a) Hold the lens between the object and the screen
(B) Measure the distance between the lens and the screen
(C) Select a well lit distant object
(D) Place a screen opposite to the object on the lab table
(e) Adjust the position of the lens to form a sharp image
The correct sequence of these steps is:
(A) c, a, d, e, b
(B) c, d, a, e, b
(C) c, d, e, a, b
(D) c, a, e, d, b
A boy is standing at a distance of 3m in front of a plane mirror. The distance between the boy and his image is ______m.
The image formed by a convex mirror is always ______.
