Physics-
General
Easy
Question
If 
min is minimum wavelength produced in X-ray tube and k
is the wavelength of k line. As the operating tube voltage is increased.
increases
- decreases
increases
- decreases
increases
decreases
increases
decreases
The correct answer is: increases
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physics-
Given curve shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes A and B. The dark curve represents the relation for the tube A in which the potential difference between the target and the filament is 
and the atomic number of the target material is 
. Similarly dotted curve is for tube B. These quantities are 
and 
for the
Given curve shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes A and B. The dark curve represents the relation for the tube A in which the potential difference between the target and the filament is and the atomic number of the target material is . Similarly dotted curve is for tube B. These quantities are and for the
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The figure shows surface XY separating two transparent media, medium–1 and medium–2. The lines ab and cd represent wavefronts of a light wave travelling in medium–1 and incident on XY. The lines ef and gh represent wavefronts of the light wave in medium–2 after refraction.
Light travels as a
The figure shows surface XY separating two transparent media, medium–1 and medium–2. The lines ab and cd represent wavefronts of a light wave travelling in medium–1 and incident on XY. The lines ef and gh represent wavefronts of the light wave in medium–2 after refraction.
Light travels as a
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A parallel beam of light of wavelength is incident on a plane mirror at an angle 
as shown in the figure. With maximum intensity at point P, which of the following relation is correct.
A parallel beam of light of wavelength is incident on a plane mirror at an angle as shown in the figure. With maximum intensity at point P, which of the following relation is correct.
physics-General
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Monochromatic light is incident on a glass prism of angle A. If the refractive index of the material of the prism is 
, a rav, incident at an angle q, on the face AB would get transmitted through the face AC of the prism provided
Monochromatic light is incident on a glass prism of angle A. If the refractive index of the material of the prism is , a rav, incident at an angle q, on the face AB would get transmitted through the face AC of the prism provided
physics-General
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Two coherent point sources 
and 
are separated by a small distance 'd' as shown. The fringes obtained on the screen will be :
Two coherent point sources and are separated by a small distance 'd' as shown. The fringes obtained on the screen will be :
physics-General
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The figure shows a schematic diagram showing the arrangement of Young's Double Slit experiment
Choose the correct statement (s) related to the wavelength of light used.
The figure shows a schematic diagram showing the arrangement of Young's Double Slit experiment
Choose the correct statement (s) related to the wavelength of light used.
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A capacitor of capacitance C is charged to a potential difference V from a cell and then disconnected from it. A charge +Q is now given to its positive plate. The potential difference across the capacitor is now
A capacitor of capacitance C is charged to a potential difference V from a cell and then disconnected from it. A charge +Q is now given to its positive plate. The potential difference across the capacitor is now
physics-General
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An empty thick conducting shell of inner radius a and outer radius b is shown in figure. If it is observed that the inner face of the shell carries a uniform charge density -s and the surface carries a uniform charge density 's'
If another point charge is also placed at a distance the center of shell, then choose the correct statements
An empty thick conducting shell of inner radius a and outer radius b is shown in figure. If it is observed that the inner face of the shell carries a uniform charge density -s and the surface carries a uniform charge density 's'
If another point charge is also placed at a distance the center of shell, then choose the correct statements
physics-General
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An empty thick conducting shell of inner radius a and outer radius b is shown in figure. If it is observed that the inner face of the shell carries a uniform charge density -s and the surface carries a uniform charge density 's'
If a point charge is placed at the center of the shell, then choose the correct statement(s)
An empty thick conducting shell of inner radius a and outer radius b is shown in figure. If it is observed that the inner face of the shell carries a uniform charge density -s and the surface carries a uniform charge density 's'
If a point charge is placed at the center of the shell, then choose the correct statement(s)
physics-General
physics-
Four initially uncharged thin, large, plane identical metallic plates A, B, C and D are arranged parallel to each other as shown. Now plates A, B, C and D are given charges Q,2Q,3Q and 4Q respectively. Plates A and D are connected by a metallic wire while plates B and C are connected by other metallic wire then after Electrostatic equilibrium is reached.
Total charge on plates after earthing plates A and B will be
Four initially uncharged thin, large, plane identical metallic plates A, B, C and D are arranged parallel to each other as shown. Now plates A, B, C and D are given charges Q,2Q,3Q and 4Q respectively. Plates A and D are connected by a metallic wire while plates B and C are connected by other metallic wire then after Electrostatic equilibrium is reached.
Total charge on plates after earthing plates A and B will be
physics-General
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Four initially uncharged thin, large, plane identical metallic plates A, B, C and D are arranged parallel to each other as shown. Now plates A, B, C and D are given charges Q,2Q,3Q and 4Q respectively. Plates A and D are connected by a metallic wire while plates B and C are connected by other metallic wire then after Electrostatic equilibrium is reached.
Charge on plate D after earthing it will be
Four initially uncharged thin, large, plane identical metallic plates A, B, C and D are arranged parallel to each other as shown. Now plates A, B, C and D are given charges Q,2Q,3Q and 4Q respectively. Plates A and D are connected by a metallic wire while plates B and C are connected by other metallic wire then after Electrostatic equilibrium is reached.
Charge on plate D after earthing it will be
physics-General
physics-
Four initially uncharged thin, large, plane identical metallic plates A, B, C and D are arranged parallel to each other as shown. Now plates A, B, C and D are given charges Q,2Q,3Q and 4Q respectively. Plates A and D are connected by a metallic wire while plates B and C are connected by other metallic wire then after Electrostatic equilibrium is reached.
Charge on left surface of plate B will be
Four initially uncharged thin, large, plane identical metallic plates A, B, C and D are arranged parallel to each other as shown. Now plates A, B, C and D are given charges Q,2Q,3Q and 4Q respectively. Plates A and D are connected by a metallic wire while plates B and C are connected by other metallic wire then after Electrostatic equilibrium is reached.
Charge on left surface of plate B will be
physics-General
physics-
Plates A and B constitute an isolated, charge parallel-plate capacitor. The inner surfaces (I and IV) of A and B have charges +Q and -Q respectively. A third plate C with charge +Q is now introduced midway between A and B. Which of the following statements is not correct?
Plates A and B constitute an isolated, charge parallel-plate capacitor. The inner surfaces (I and IV) of A and B have charges +Q and -Q respectively. A third plate C with charge +Q is now introduced midway between A and B. Which of the following statements is not correct?
physics-General
physics-
Mark the correct options:
Mark the correct options:
physics-General
physics-
X and Y are large, parallel conducting plates closed to each other. Each face has an area A. X is given a charge Q.Y is without any charge. Points A, B and C are as shown in figure.
X and Y are large, parallel conducting plates closed to each other. Each face has an area A. X is given a charge Q.Y is without any charge. Points A, B and C are as shown in figure.
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