Advertisements
Advertisements
Question
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
Options
If both assertion and reason are true and reason is the correct explanation.
If both assertion and reason are true and reason is not the correct explanation.
If assertion is true but reason is false.
If assertion is false but reason is true.
Advertisements
Solution
If both assertion and reason are true and reason is not the correct explanation.
APPEARS IN
RELATED QUESTIONS
What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror of convex mirror)? Calculate the focal length of a spherical mirror whose radius of curvature is 25 cm.
Complete the following sentence:
All the distances are measured from the .......... of a spherical mirror.
Explain the following term:
Incident ray
Draw diagram/diagrams to show them.
The letters on the front of an ambulance are written laterally inverted like 
. Give reason.
Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.
Does the mirror mentioned in part (b) form real image for all locations of the object?
Which mirror will you prefer to use as a rear view mirror in a car : plane mirror or convex mirror? Give one reason.
AB is the object, A1B1 is its image. MM' is the position of the mirror. Complete the ray diagram and find the position of the center of curvature and focus of the mirror. Also, measure the focal length.
Visit a nearby hospital. You can also visit the clinic of an ENT specialist, or a dentist. Request the doctor to show you the mirrors used for examining ear, nose, throat and teeth. Can you recognise the kind of mirror used in these instruments?
