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What is The sun?
The sun:- Sun the brightest object in the universe. It is main body of the solar system. It has a luminous sphere approximately 8,65,000 miles in diameter. It is assumed that is having of a liquid inner portion with a gaseous outer covering. All parts of the life on the earth and on other members of the solar system depend directly or indirectly upon the radiation from the Sun
Calculate the specific heat of a metal from the following data. A container made of the metal has a mass of 3.2 kg and contains 20 kg of water. A1.7 kg piece of the metal initially
Two concentric conducting shells a and b are of radii R and 2R. A charge +q is centred at their center. Shell b is then earthed and a is given charge q. Find the charge on outer su
These materials are used for permanent magnet manufacturing because of their low cost and their low weight. It consists of low iron oxide in combination with either barium carbonat
Write three special characteristics of the light source used in optical communication. Name any one optical detector. Define the meaning of the term 'sensitivity' and 'responsively
Energy Transformation on a Roller Coaster A roller coaster ride is a thrilling experience that includes a wealth of physics. Part of the physics of a roller coaster is the phys
How are the colloids classified on the basis of the nature of interaction among dispersed phase and dispersion medium? Describe a significant characteristic of each class. Which of
Q. What is a frame of reference? A system of co-ordinate axes which describe the position of a particle in two or three dimensional space is called a frame of reference.
Joule's laws (J.P. Joule) Joule's first law The heat Q generated while a current I pass through a resistance R for a particular time t is given by following Q = I2 R
Distinguish between a terrestrial telescope and an astronomical telescope. Explain Rams dens' eye piece with the help of a neat diagram. Illustrate its advantages and disadvantages
What is cavitationin terms of ultrasonic? Cavitation is an effect which is generated into liquids by intensive ultrasonic waves. The resulting pressure waves make vacuum bubb
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