Consider a point at the focal point of convergent lens
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1
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1813
|
December 11, 2016
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The refractive index of glass is 1.5. What is the speed of light in glass?
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1
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4951
|
December 11, 2016
|
Is Huygens’ principle valid for longitudinal sound waves?
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0
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3145
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December 11, 2016
|
What is the shape of the wavefront on earth for sunlight?
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0
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2077
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December 11, 2016
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Distiguish between linearly polarised and unpolarised light
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1
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2579
|
September 9, 2016
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How does one demonstrate, using a suitable diagram, that unpolarised light when passed through a polaroid gets polarised?
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1
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2873
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September 9, 2016
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How does an unpolarised light incident on a polaroid get polarised?
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1
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6324
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September 9, 2016
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Distinguish between unpolarised and linearly polarised light
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1
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3237
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September 9, 2016
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Describe briefly, with the help of suitable diagram, how the transverse nature of light can be demonstrated by the phenomenon of polarisation,
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1
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5842
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September 9, 2016
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Name the phenomenon which proves transverse wave nature of light
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1
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6191
|
September 9, 2016
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Find an expression for intensity of transmitted light
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1
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6382
|
September 9, 2016
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Distinguish between unpolarised and a linearly polarised light
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1
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2997
|
September 9, 2016
|
State Brewster's law
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1
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4872
|
September 9, 2016
|
Figure shows a system of two polarizing sheets in the path of initially unpolarized light
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0
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3548
|
September 9, 2016
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Which of the following waves can be polarised
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1
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1550
|
September 9, 2016
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Write the factors by which the resolving power of a telescope can be increased
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1
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4996
|
September 9, 2016
|
A parallel beam of monochromatic light falls normally on a narrow slit
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1
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6422
|
September 9, 2016
|
Yellow light ($\lambda $ = 6000 A) illuminates a single slit
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1
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4429
|
September 9, 2016
|
The following table gives data about the single slit diffraction experiment:
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1
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2646
|
September 9, 2016
|
A parallel beam of light of 500 run falls on a narrow slit
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1
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578
|
September 9, 2016
|
Answer the following questions:
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1
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2211
|
September 9, 2016
|
Write the distinguishing features between a diffraction pattern due to a single slit and the interference fringes produced in Young's double slit experiment
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0
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5327
|
September 9, 2016
|
For a single slit of width "a", the first minimum of the interference
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1
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4015
|
September 9, 2016
|
Name the phenomenon which is responsible for bending of light around sharp corners of an obstacle
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1
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3415
|
September 9, 2016
|
For a given single slit, the diffraction pattern is obtained on a fixed screen
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1
|
2090
|
September 9, 2016
|
If a monochromatic source of light is replaced by white light, what change would you observe in the diffraction pattern
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0
|
2890
|
September 9, 2016
|
How does the angular separation between fringes in single-slit
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0
|
1185
|
September 9, 2016
|
Write three characteristic features to distinguish between the interference fringes
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1
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5519
|
September 9, 2016
|
In Young's double slit experiment, describe briefly how bright and dark fringes are obtained on the screen kept in front of a double slit
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1
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3705
|
September 9, 2016
|
(ii) Compare the interference pattern observed in Young's double slit experiment with single slit diffraction pattern, pointing out three distinguishing features
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1
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8602
|
September 9, 2016
|