|
Consider a point at the focal point of convergent lens
|
|
1
|
1966
|
December 11, 2016
|
|
The refractive index of glass is 1.5. What is the speed of light in glass?
|
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1
|
5209
|
December 11, 2016
|
|
Is Huygens’ principle valid for longitudinal sound waves?
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0
|
3257
|
December 11, 2016
|
|
What is the shape of the wavefront on earth for sunlight?
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0
|
2159
|
December 11, 2016
|
|
Distiguish between linearly polarised and unpolarised light
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1
|
2644
|
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
|
2981
|
September 9, 2016
|
|
How does an unpolarised light incident on a polaroid get polarised?
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1
|
6424
|
September 9, 2016
|
|
Distinguish between unpolarised and linearly polarised light
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1
|
3309
|
September 9, 2016
|
|
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
|
6003
|
September 9, 2016
|
|
Name the phenomenon which proves transverse wave nature of light
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|
1
|
6271
|
September 9, 2016
|
|
Find an expression for intensity of transmitted light
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|
1
|
6599
|
September 9, 2016
|
|
Distinguish between unpolarised and a linearly polarised light
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|
1
|
3079
|
September 9, 2016
|
|
State Brewster's law
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1
|
4954
|
September 9, 2016
|
|
Figure shows a system of two polarizing sheets in the path of initially unpolarized light
|
|
0
|
3691
|
September 9, 2016
|
|
Which of the following waves can be polarised
|
|
1
|
1607
|
September 9, 2016
|
|
Write the factors by which the resolving power of a telescope can be increased
|
|
1
|
5140
|
September 9, 2016
|
|
A parallel beam of monochromatic light falls normally on a narrow slit
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|
1
|
6759
|
September 9, 2016
|
|
Yellow light ($\lambda $ = 6000 A) illuminates a single slit
|
|
1
|
4634
|
September 9, 2016
|
|
The following table gives data about the single slit diffraction experiment:
|
|
1
|
2803
|
September 9, 2016
|
|
A parallel beam of light of 500 run falls on a narrow slit
|
|
1
|
656
|
September 9, 2016
|
|
Answer the following questions:
|
|
1
|
2279
|
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
|
|
0
|
5555
|
September 9, 2016
|
|
For a single slit of width "a", the first minimum of the interference
|
|
1
|
4144
|
September 9, 2016
|
|
Name the phenomenon which is responsible for bending of light around sharp corners of an obstacle
|
|
1
|
3493
|
September 9, 2016
|
|
For a given single slit, the diffraction pattern is obtained on a fixed screen
|
|
1
|
2193
|
September 9, 2016
|
|
If a monochromatic source of light is replaced by white light, what change would you observe in the diffraction pattern
|
|
0
|
2951
|
September 9, 2016
|
|
How does the angular separation between fringes in single-slit
|
|
0
|
1242
|
September 9, 2016
|
|
Write three characteristic features to distinguish between the interference fringes
|
|
1
|
5794
|
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
|
|
1
|
3906
|
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
|
9611
|
September 9, 2016
|