Monthly Archive: October 2011

Oct 30

Kinetic Energy – Numerical Problem

a running man has half the kinetic energy that a boy of half his mass has.the man speed up by 1m/s and then has the same kinetic energy as the body. what were the original speeds of man and boy?

Permanent link to this article: http://www.plustwophysics.com/kinetic-energy-numerical-problem/

Oct 30

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

Permanent link to this article: http://www.plustwophysics.com/spherical-mirror-problem/

Oct 27

Parallel Universe

Is there really a parallel universe?

Answer:

As of now, the answer is not final. There are different ideas and explanation given on parallel universes. Some say if parallel universe are far away from

read more

Permanent link to this article: http://www.plustwophysics.com/parallel-universe/

Oct 27

Dual nature of light and related questions

How light has a dual nature?

A photon has zero rest mass. Explain how ?

(These questions were posted by Shubham SInha  and Ritika Chatak)

Answer:

The dual nature of light has been established through

read more

Permanent link to this article: http://www.plustwophysics.com/dual-nature-of-light-and-related-questions/

Oct 25

PHYSICS QUESTION PAPERS

Find below the links to questions papers in Physics already available at our group of Physics websites

http://physics.2lv.in/must-practice-questions-for-cbse-physics-class-12-solved/

<a href="http://plustwophysics.com/how-was-the-cbse-plustwo-physics-question-paper-aissce-2011/

read more

Permanent link to this article: http://www.plustwophysics.com/physics-question-papers/

Oct 23

What is Eddy Current?

Permanent link to this article: http://www.plustwophysics.com/what-is-eddy-current/

Oct 22

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

Permanent link to this article: http://www.plustwophysics.com/numerical-problem-from-image-formation-by-spherical-mirror-optics/

Older posts «

%d bloggers like this: