B: 7
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Light waves are emitted from two sources. What is a necessary condition for observable interference fringes to be pro…
Light of wavelength 567 nm is incident normally on a diffraction grating. The grating has 400 lines per mm. A number …
Using monochromatic light, interference fringes are produced on a screen placed a distance D from a pair of slits of …
M and N are two electromagnetic waves. The ratio wavelength of M wavelength of N = 10⁵. What could M and N be?
An electric current I is given in the list of formulae on page 3 as I = Anvq. What do each of the symbols represent f…
The potential difference across a resistor is 12 V. The current in the resistor is 2.0 A. A charge of 4.0 C passes th…