Physics-
General
Easy

Question

A current of 3A flows in a circuit shown in the figure The potential difference between A and B is

  1. 4V    
  2. 3V    
  3. 2V    
  4. 5V    

The correct answer is: 2V

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A conductor has a non-uniform section as shown in the figure A steady current is flowing through it Then the drift speed of the electrons

A conductor has a non-uniform section as shown in the figure A steady current is flowing through it Then the drift speed of the electrons

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Certain plane wavefronts are shown in figure. The refractive index of medium is

Certain plane wavefronts are shown in figure. The refractive index of medium is

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Plane wave fronts are incident on a spherical mirror as shown in the figure. The reflected wave fronts will be

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Wavefronts incident on an interface between the media are shown in the figure. The refracted wavefront will be as shown in

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Spherical wavefronts shown in figure, strike a plane mirror. Reflected wavefront will be as shown in

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The figure shows the interference pattern obtained in a double–slit experiment using light of wavelength 600nm.

The third order bright fringe is

The figure shows the interference pattern obtained in a double–slit experiment using light of wavelength 600nm.

The third order bright fringe is

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The optical path length followed by ray from point A to B given that laws of reflection are obeyed as shown in figure is

The optical path length followed by ray from point A to B given that laws of reflection are obeyed as shown in figure is

physics-General
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The optical path length followed by ray from point A to B given that laws of refraction are obeyed as shown in figure

The optical path length followed by ray from point A to B given that laws of refraction are obeyed as shown in figure

physics-General
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In the figure an arrangement of young's double slit experiment is shown. A parallel beam of light of wavelength blank to the power of ´ end exponent lambda to the power of ´ end exponent (in medium n subscript 1 end subscript ) is incident at an angle blank to the power of ´ end exponent theta to the power of ´ end exponentas shown. Distance S subscript 1 end subscript O equals S subscript 2 end subscript O. Point 'O' is the origin of the coordinate system. The medium on the left and right side of the plane of slits has refractive index n subscript 1 end subscript and n subscript 2 end subscript respectively. Distance between the slits is d. The distance between the screen and the plane of slits is D Using D equals 1 m comma d equals 1 m m comma theta equals 30 to the power of ring operator end exponent comma lambda equals 0.3 m m comma n subscript 1 end subscript equals fraction numerator 4 over denominator 3 end fraction comma n subscript 2 end subscript equals fraction numerator 10 over denominator 9 end fraction comma answer the following

The y-coordinate of the point where the total phase difference between the interefering waves is zero, is

In the figure an arrangement of young's double slit experiment is shown. A parallel beam of light of wavelength blank to the power of ´ end exponent lambda to the power of ´ end exponent (in medium n subscript 1 end subscript ) is incident at an angle blank to the power of ´ end exponent theta to the power of ´ end exponentas shown. Distance S subscript 1 end subscript O equals S subscript 2 end subscript O. Point 'O' is the origin of the coordinate system. The medium on the left and right side of the plane of slits has refractive index n subscript 1 end subscript and n subscript 2 end subscript respectively. Distance between the slits is d. The distance between the screen and the plane of slits is D Using D equals 1 m comma d equals 1 m m comma theta equals 30 to the power of ring operator end exponent comma lambda equals 0.3 m m comma n subscript 1 end subscript equals fraction numerator 4 over denominator 3 end fraction comma n subscript 2 end subscript equals fraction numerator 10 over denominator 9 end fraction comma answer the following

The y-coordinate of the point where the total phase difference between the interefering waves is zero, is

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General
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Statement–1: Two point coherent sources of light S1 and S2 are placed on a line as shown. P and Q are two points on that line. If at point P maximum intensity is observed then maximum intensity should also be observed at Q

Statement–2: In the figure of statement 1, the distance |S1 P – S2 P| is equal to distance |S2Q – S1Q|.

Statement–1: Two point coherent sources of light S1 and S2 are placed on a line as shown. P and Q are two points on that line. If at point P maximum intensity is observed then maximum intensity should also be observed at Q

Statement–2: In the figure of statement 1, the distance |S1 P – S2 P| is equal to distance |S2Q – S1Q|.

physics-General
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In an interfrence arrangement similar to Young's double- slit experiment, the slits S subscript 1 end subscript & S subscript 2 end subscript are illuminated with coherent microwave sources, each of frequency 106 Hz. The sources are synchronized to have zero phase difference. The slits are separated by a distance d = 150.0 m and screen is at very large distance from slits. The intensity I(q) is measured as a function of theta, where theta is defined as shown. Screen is at a large distance. If I subscript 0 end subscript is the maximum intensity then I (theta) for 0 less or equal than theta less or equal than 90 to the power of ring operator end exponent is given by:

In an interfrence arrangement similar to Young's double- slit experiment, the slits S subscript 1 end subscript & S subscript 2 end subscript are illuminated with coherent microwave sources, each of frequency 106 Hz. The sources are synchronized to have zero phase difference. The slits are separated by a distance d = 150.0 m and screen is at very large distance from slits. The intensity I(q) is measured as a function of theta, where theta is defined as shown. Screen is at a large distance. If I subscript 0 end subscript is the maximum intensity then I (theta) for 0 less or equal than theta less or equal than 90 to the power of ring operator end exponent is given by:

physics-General
General
physics-

In an interfrence arrangement similar to Young's double- slit experiment, the slits S subscript 1 end subscript & S subscript 2 end subscript are illuminated with coherent microwave sources, each of frequency 106 Hz. The sources are synchronized to have zero phase difference. The slits are separated by a distance d = 150.0 m and screen is at very large distance from slits. The intensity I(q) is measured as a function of theta, where theta is defined as shown. Screen is at a large distance. If I subscript 0 end subscript is the maximum intensity then I (theta) for 0 less or equal than theta less or equal than 90 to the power of ring operator end exponent is given by:

In an interfrence arrangement similar to Young's double- slit experiment, the slits S subscript 1 end subscript & S subscript 2 end subscript are illuminated with coherent microwave sources, each of frequency 106 Hz. The sources are synchronized to have zero phase difference. The slits are separated by a distance d = 150.0 m and screen is at very large distance from slits. The intensity I(q) is measured as a function of theta, where theta is defined as shown. Screen is at a large distance. If I subscript 0 end subscript is the maximum intensity then I (theta) for 0 less or equal than theta less or equal than 90 to the power of ring operator end exponent is given by:

physics-General
parallel
General
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A parallel beam of light left parenthesis lambda equals 5000 text Å end text right parenthesis is incident at an angle alpha equals 30 to the power of ring operator end exponent with the normal to the slit plane in a young’s double slit experiment. Assume that the intensity due to each slit at any point on the screen is I subscript 0 end subscript. Point O is equidistant from S subscript 1 end subscript & S subscript 2 end subscript. The distance between slits is 1mm.

A parallel beam of light left parenthesis lambda equals 5000 text Å end text right parenthesis is incident at an angle alpha equals 30 to the power of ring operator end exponent with the normal to the slit plane in a young’s double slit experiment. Assume that the intensity due to each slit at any point on the screen is I subscript 0 end subscript. Point O is equidistant from S subscript 1 end subscript & S subscript 2 end subscript. The distance between slits is 1mm.

physics-General
General
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A long narrow horizontal slit lies 1 mm above a plane mirror. The interference pattern produced by the slit and its image is viewed on a screen capital sigmadistant 1m from the slit. The wavelength of light is 600 nm. Then the distance of the first maxima above the mirror is equal to left parenthesis d less than D right parenthesis

A long narrow horizontal slit lies 1 mm above a plane mirror. The interference pattern produced by the slit and its image is viewed on a screen capital sigmadistant 1m from the slit. The wavelength of light is 600 nm. Then the distance of the first maxima above the mirror is equal to left parenthesis d less than D right parenthesis

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Two parallel beams of light of wavelength lambda inclined to each other at angle theta left parenthesis much less-than less than 1 right parenthesis are incident on a plane at near normal incidence. The fringe width will be :

Two parallel beams of light of wavelength lambda inclined to each other at angle theta left parenthesis much less-than less than 1 right parenthesis are incident on a plane at near normal incidence. The fringe width will be :

physics-General
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