mirror – Plus Two Physics

September 16, 2012

A Problem from Optics – Reflection of light

Convex and concave mirrors have same radii of curvature R. The distance between the mirrors is 2R. At what point on the common optical axis of the mirrors should a point source of light A be placed read more

November 17, 2011

Mirror Mirror Relativity

Can you see your image when you are travelling at the speed of light?

Visitors and students are requested to respond and answer via comments.

Einstein’s Theory of relativity says:”The Laws of Physics read more

November 15, 2011November 15, 2011

Numerical Problems From Optics

When an object of height 4cm is placed at 40cm from a mirror the mirror forms the image on the object itself. If the height of the image is equal to the height of the object. Find out the focal

October 30, 2011October 30, 2011

Spherical Mirror Problem

A rear view mirror used in a bus has a radius of curvature 3.5 m. If the driver of the bus locates a car at 10.0m behind the bus, find the position, nature and size of the image of the car.

Ans:

f = r/2=-1.75 read more

October 22, 2011October 22, 2011

Numerical problem from image formation by spherical mirror – optics

An object is placed 18cm in front of a spherical mirror. if the image formed is 4cm to the right of the mirror calculate the focal length and radius of curvature? what is the nature of the mirror?

(The read more

October 13, 2011October 13, 2011

Numerical Problems from Light

Madhu sent us the following problems from “Light”. Visitors can attempt to solve the problems by quoting the question number.

Most of the questions below are based on mirror formula and lens read more

July 17, 2010

LIGHT –REFLECTION AND REFRACTION QUESTIONS TO PRACTICE

LIGHT –REFLECTION AND REFRACTION

QUESTIONS TO PRACTICE

1. What are the differences between real image and virtual image?

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