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Anode rays were discovered by:
(1)Goldstein
(b)J. Stoney
(3)Rutherford
(4)J.J. Thomson
Ans: (1)Goldstein
For germanium the forbidden gap is (A) 0.15ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For germanium the forbidden gap is 0.7ev.
Echo: The sound heard after reflection from an obstacle is known as echo.
Q What is temperature of inversion? Maintain the temperature of the cold junction constant the temperature of the hot junction is gradually increased. The thermo emf increase
a car with an initial speed of 24.5 km/hr accelerates at a uniform rate of 0.98 m/s^2 for 5.6sec. find the final speed and displacement of the car during this time.
does lights of different wavelengths help us to see different colour
explain and give examples of the two types of current
LENARD ATOMIC MODEL : Lenard suggested that the atom must have a lot of empty in it. Lenard's model of an atom could not explain about the stability and mass of an atom .
Electric Field: The electrical field because of a charge can be described as the space around the charge.
Which of the following particles has more electrons than neutrons: (1) C (2) F- (3)O -2 (4)Al +3 Ans: O -2
How to find acceleration from succesive speed?
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