Physics-
General
Easy
Question
The resistance between A and B is
- 8
- 4
- 3.75
- 2
The correct answer is: 4
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In the figure shown, S is a point monochromatic light source of frequency 
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Consider the optical system shown in figure. The point source of light S is having wavelength equals to l. The light is reaching screen only after reflection. For point P to be 2nd maxima, the value of l would be (D>>d and d>>l)
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Statement-1 : A ray is incident from outside on a glass sphere surrounded by air as shown. This ray may suffer total internal reflection at second interface.
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Statement-1 : A beam of white light enters the curved surface of a semicircular piece of glass along the normal. The incoming beam is moved clockwise (so that the angle 
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Statement-1 : A beam of white light enters the curved surface of a semicircular piece of glass along the normal. The incoming beam is moved clockwise (so that the angle increases), such that the beam always enters along the normal to the curved side. Just before the refracted beam disappears, it becomes predominantly red.
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Statement-1: In octahedral complexes, the three orbitals (dxy, dyz, dzx) are stable and of low energy while the two orbitals 
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]
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In a Young’s double slit experiment the slits 
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In a Young’s double slit experiment the slits are illuminated by a parallel beam of light of wavelength , from the medium of refractive index = 1.2. A thin film of thickness 1.2 and refractive index n = 1.5 is placed infront of perpendicular to path of light. The refractive index of medium between plane of slits & screen is = 1.4. If the light coming from the film and have equal intensities I then intensity at geometrical centre of the screen O is
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In a YDSE experiment two slits and 
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An electromagnetic wave of wavelength 
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. [Take : =1]
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All objects referred to the subsequent problems lie on the principle axis.
If light is incident on surface 2 from right then which of the following is true for image formed after a single refraction.
All objects referred to the subsequent problems lie on the principle axis.
If light is incident on surface 2 from right then which of the following is true for image formed after a single refraction.
physics-General
