Answer / deepa

Cosmic rays:-These consist of extremely energetic particles chiefly protons originating in distant stars and accelerated by magnetic fields in interstellar space before-reaching the earth. When these primary cosmic rays collide with the nuclic of the earth’s atmosphere they produce high energy electrons, positrons and photons collectively called secondary cosmic rays. Electromagnetic radiations of extremely small wavelength are associated with the cosmic rays.

Explain band theory ?

1 Answers   SJS Kashmir,

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WHICH OF THE FOLLOWING PAIR IS INCORRECT? A) ROENTGEN: X-RAY B) NEWTON: LAW OF GRAVITATION C) FARADAY: DIFFUSION OF GASES D) PASTEUR: BACTERIOLOGY

4 Answers  

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What forces support an airplane in flight?

1 Answers  

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What is white body ?

1 Answers  

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Two bulbs, one of 600W and the other of 100W having same voltage rating are connected in series across the supply in a room.Which bulb will glow brighter? If one of the bulb is switched off, what will be effect on illumination?

2 Answers  

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Why ate the telegraph wires kept a little loose ?

2 Answers  

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What is the longest lasting synthetic periodic element?

0 Answers  

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name of the ten satellite launched from india and year of launch.

2 Answers   NPL,

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how much mercury overflows when a glass vessel filled to the brim with 50 cubic centimeter of mercury 15°C is heated to 75°C of glass?

0 Answers  

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What makes the telegraph wires hum?

2 Answers  

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In any current connection there are two wires one is phase and another is neutral, what is the use of neutral wire?

5 Answers  

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what happens to the period of a simple pendulum taken into a deep mine

3 Answers  

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