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Two coherent point sources S1 and S2 are separated by a small distance d as shown. The fringes obtained on the screen will be
18
Nov
Two coherent point sources S1 and S2 are separated by a small distance d as shown. The fringes obtained on the screen will be Two coherent point sources S1 and S2 are separated by a small distance d as shown. The fringes obtained on the screen will be November 18, 2020 Category: Chapter 16 - [...]
A beam of unpolarized light of intensity I0 is passed through a polaroid A and then through another polaroid B which is oriented so that its principal plane makes an angle of 45∘ relative to that of A. The intensity of the emergent light is
18
Nov
A beam of unpolarized light of intensity I0 is passed through a polaroid A and then through another polaroid B which is oriented so that its principal plane makes an angle of 45∘ relative to that of A. The intensity of the emergent light is The speed of light in the medium is : November [...]
Which of the following phosphorus is most stable (a) Red (b) White (c) Black (d) All stable
18
Nov
Which of the following phosphorus is most stable (a) Red (b) White (c) Black (d) All stable Which of the following phosphorus is most stable (a) Red (b) White (c) Black (d) All stable November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Two beams A and B, of plane polarized light with mutually perpendicular planes of polarization are seen through a polaroid. From the position when the beam a has maximum intensity (and beam B has zero intensity), a rotation of polaroid through 30∘ makes the two beams appear equally bright. If the initial intensities of the two beams are IA and IB respectively, then IA/IB equals:
18
Nov
Two beams A and B, of plane polarized light with mutually perpendicular planes of polarization are seen through a polaroid. From the position when the beam a has maximum intensity (and beam B has zero intensity), a rotation of polaroid through 30∘ makes the two beams appear equally bright. If the initial intensities of the [...]
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a rotation of polaroid through 30∘ makes the two beams appear equally bright. If the initial intensities of the two beams are IA and IB respectively ,
of plane polarized light with mutually perpendicular planes of polarization are seen through a polaroid. From the position when the beam a has maximum intensity (and beam B has zero intensity) ,
then IA/IB equals: ,
Two beams A and B ,
Assuming human pupil to have a radius of 0.25cm and a comfortable viewing distance of 25 cm, the minimum separation between two objects that human eye can resolve at 500 nm wavelength is
18
Nov
Assuming human pupil to have a radius of 0.25cm and a comfortable viewing distance of 25 cm, the minimum separation between two objects that human eye can resolve at 500 nm wavelength is Assuming human pupil to have a radius of 0.25cm and a comfortable viewing distance of 25 cm the minimum separation between two [...]
The box of a pin hole camera, of length L, has a hole of radius a. It is assumed that when the hole is illuminated by a parallel beam of light of wavelength λ the spread of the spot (obtained on the opposite wall of the camera) is the sum of its geometrical spread and the spread due to diffraction. The spot would then have its minimum size (say b min) when :
18
Nov
The box of a pin hole camera, of length L, has a hole of radius a. It is assumed that when the hole is illuminated by a parallel beam of light of wavelength λ the spread of the spot (obtained on the opposite wall of the camera) is the sum of its geometrical spread and [...]
Nitrogen dioxide is released by heating (a) Pb(NO3)2 (b) KNO3 (c) NaNO2 (d) NaNO3
18
Nov
Nitrogen dioxide is released by heating (a) Pb(NO3)2 (b) KNO3 (c) NaNO2 (d) NaNO3 Nitrogen dioxide is released by heating (a) Pb(NO3)2 (b) KNO3 (c) NaNO2 (d) NaNO3 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
An observer looks at a distant tree of height 10m with a telescope of magnifying power of 20. To the observer the tree appears :
18
Nov
An observer looks at a distant tree of height 10m with a telescope of magnifying power of 20. To the observer the tree appears : An observer looks at a distant tree of height 10m with a telescope of magnifying power of 20. To the observer the tree appears : November 18, 2020 Category: Chapter [...]
The angular width of the central maximum in a single slit diffraction pattern is 60∘. The width of the slit is 1 μm. The slit is illuminated by monochromatic plane waves. If another slit of same width is made near it, Young’s fringes can be observed on a screen placed at a distance 50 cm from the slits. If the observed fringe width is 1 cm, what is slit separation distance ? (i.e. distance between the centres of each slit.)
18
Nov
The angular width of the central maximum in a single slit diffraction pattern is 60∘. The width of the slit is 1 μm. The slit is illuminated by monochromatic plane waves. If another slit of same width is made near it, Young’s fringes can be observed on a screen placed at a distance 50 cm [...]
The reaction, which forms nitric oxide, is (a) C and N2O (b) Cu and N2O (c) Na and NH3 (d) Cu and HNO3
18
Nov
The reaction, which forms nitric oxide, is (a) C and N2O (b) Cu and N2O (c) Na and NH3 (d) Cu and HNO3 is (a) C and N2O (b) Cu and N2O (c) Na and NH3 (d) Cu and HNO3 The reaction which forms nitric oxide November 18, 2020 Category: Uncategorised (JEE Advanced Physics by [...]