An object $2 c m$ high is placed at a distance of $16 c m$ from a concave mirror, which produces a real image $3 c m$ high. What is the focal length of the mirror?

33.33% studentsanswered this correctly

Important Questions on RAY OPTICS AND OPTICAL INSTRUMENTS

MEDIUM

12th Gujarat Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 9 - RAY OPTICS AND OPTICAL INSTRUMENTS>Exercise>Q 47

A boy of height

1 m

stands in front of a convex mirror. His distance from the mirror is equal to its focal length. The height of his image is

HARD

12th Gujarat Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 9 - RAY OPTICS AND OPTICAL INSTRUMENTS>Exercise>Q 48

What you mean by total internal reflection? Draw a diagram indicating the total internal reflection. State the necessary conditions for total internal reflection to take place. Describe the formation of mirage based on total internal reflection with the help of a diagram.

MEDIUM

12th Gujarat Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 9 - RAY OPTICS AND OPTICAL INSTRUMENTS>Exercise>Q 49

Use the mirror equation to deduce that:
the virtual image produced by a convex mirror is always diminished in size and is located between the focus and the pole.
[Note: This exercise helps you deduce algebraically properties of images that one obtains from explicit ray diagrams.]

MEDIUM

12th Gujarat Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus - 2023)>Chapter 9 - RAY OPTICS AND OPTICAL INSTRUMENTS>Exercise>Q 50

Use the mirror equation to deduce that:
A convex mirror always produces a virtual image independent of the location of the object.
[Note: This exercise helps you deduce algebraically properties of images that one obtains from explicit ray diagrams.]