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Q Define threshold frequency?
The minimum frequency of incident radiation lower which the photoelectric emission isn't possible completely but high the intensity of incident radiation may be. The threshold frequency is dissimilar for different metals.
determine the pressure of a 20 lb force applied to an area of 10 inch squared
at a particular instant the speedometer of a vehicle shows 30km/hr .it is the a}average speed b}instantaneous speed c}uniform speed d}non-uniform speed
Explain the formula of the Stefan law. STEFAN'S LAW: P = σ AT 4 Here: P = Power radiated into W (J/s) σ = Stefan's Constant 5.67 x 10 -8 W m -2 K -4 A = Su
Q. A small pin fixed on a table top is viewed from above from a distance of 50 cm. By what distance would the pin appear to be raised if it is viewed from the same point through a
Places where friction occurs Locate the places on several mechanical devices where parts rub together. Roller skates, pulleys and the wheels of toys often required oil. Try to
Q. An emf of 5 V is persuading when the current in the coil changes at the rate of 100 As-1. Find the coefficient of self induction. Solution: Induced emf e = - L dI/dt
if in an interference pattern,the ratio between maximum and minimum intensities is 36:1,find the ratio between the amplitude and intensities of the two interfering waves.
C onsid er that two large paralle l plates forming a capacitor are separated by a distance d with vacuumed as the dielectric medium between the plates. The plates are connected to
law of successive diintegration
Q. What do the negative sign tell you about the image? A single lens is utilized to form an image of an actual physical object. You compute the image position i and find that
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