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Q. What does the MeV in MeV photon mean? Answer:- The MeV denotes million electron volts. It's a calculation of the energy the energy in the photon which is a quantum (or
What is Equipotential Surface Equipotential Surface - surface of constant potential. No work is required in moving charges with such a surface. Electric fields are perpend
A machine gun fires a bullet of mass 40 g with a velocity 1200 m/s The man holding it, can exert . a maximum force of 144 N on the gun. How many bullets can he fire per second at
Why does it take longer to heat a bucket of water than a cup of water? Because there is extra water in a bucket than in a cup, and more energy has to be put into the bucket of
Variation of temperature of a body according to Newton's law: Let Consider a system has a temperature Φi at time t = 0. It is placed in an environment whose temperature is Φ0. We a
Rutherford’s atomic model failure Rutherford proposed that the electrons circulate around the nucleus. However according to electromagnetic theory, such circulating elect
Which phrase would be incorrect to use: (1)A molecular of a compound (2)A molecule of an element (3)An atom of an element (4)None of these Ans: (2)A molecule of a
a drawing pin is pushed against a wooden table with force of 10N. calculate the pressure exerted by the pin at a point on table if area of point is 0.01m square
Q. What instrument is utilized to measure volume? Answer:- Liquid volume is measured with graduated cylinders, beakers, measuring cups, spoons and the like. For regular ob
The heating elements of electric irons are made of (A) Copper. (B) Nichrome. (C) Constantan. (D) Aluminium. Ans: The heating components of electric irons ar
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