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An electron, an alpha-particle and a proton have the similar kinetic energy. Which one of these particles has the main de-Broglie wavelength?
Aluminium is (A) Silvery white in colour. (B) Yellow in colour. (C) Reddish in colour. (D) Pale yellow in colour. Ans: Aluminium is Silvery white in c
Q. What is the use of control rods? Mention any two control rods. The control rods are utilized to control the chain reaction. They are extremely good absorbers of neutrons. Th
coaxial vectors
When two molecules approach each other, the charges in each are disturbed and redistributed in a fashion that the average distance among the unlike charges in the two molecules is
Relation among velocity wavelength and Frequency: Consider a wave of wavelength , frequency f and travelling with velocity v. The distance travel by the sound wave during th
1)The armature ABCD consists of a copper wire wound on cylindrical soft-iron core.The armature can be rotated horizontal axis perpendicular to magnetic field. 2)NS is permanent
Explain Simple Harmonic Motion Many repeating motion problems can be solved by taking the displacement as where d is distance in meters, A is amplitude in meters,
Q. Why X-rays are not used in microscopes? 1) The wavelength of X-rays is slighter than that of the visible light. 2) X-rays can't be focussed as visible radiations are foc
The matter consists of one or more basic substances called elements. An element is a substance whose all atoms are alike. Cohesion between atoms arises atoms because of interaction
a) A charge Q is placed at the centre of a cube. determine the flux of the electric field through the six surfaces of the cube. b) Determine the magnitude of the electric field
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