Light
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What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the ...
By Priya123, 4 years ago
replies 1
0
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115
Image formed by a plane mirror is (a) virtual, behind the mirror and enlarged.
By Priya123, 4 years ago
replies 1
0
1
124
Name the colours in the order they appear in the spectrum of light.
By Priya123, 4 years ago
replies 1
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371
Get a square piece of cardboard of size 6-8 cm. Make two holes as shown in Fig. Thread a s...
By Priya123, 4 years ago
replies 1
0
1
158
Make a round mark and a cross on a sheet of paper with the spot to the right of the cross ...
By Priya123, 4 years ago
replies 1
0
1
310
Look into your friend’s eye. Observe the size of the pupil. Throw light on her eye with a ...
By Priya123, 4 years ago
replies 1
0
1
129
Get a plane mirror of a suitable size. Place it in a bowl (katori) as shown in Fig., Fill ...
By Priya123, 4 years ago
replies 1
0
1
218
To make a kaleidoscope, get three rectangular mirror strips each about 15 cm long and 4 cm...
By Priya123, 4 years ago
replies 1
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