Questions
A concave mirror of focal length f is kept at a distance of 27 cm from a plane mirror. A point object is placed mid way between the mirrors at point O. Rays of light emerging from the object first get reflected by the concave mirror and then by the plane mirror and the final image is formed at the location of the object. Then the value of f is
detailed solution
Correct option is A
A ray of light emerging from the object O gets reflected from the surface of concave mirror, then it strikes the plane mirror at B, gets reflected from the surface of plane mirror, then this reflected ray strikes the surface of the concave mirror and after reflection converges at the location O of the object. using 1v+1u=1f⇒1−d+1−d2=1−f⇒f=d3=273cm=9 cmTalk to our academic expert!
Similar Questions
The distance of a real object from the focus of a convex mirror of radius of curvature ‘a’ is ‘b’. Then the distance of the image from the focus is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests