Answer
Step by step text solution for A concave mirror is used as a reflector in torches, head lights of automobiles etc, to obtain a parallel beam of light. State the position of the source of light on the principal axis to obtain the parallel beam. by PHYSICS experts to help you in doubts & scoring excellent marks in Class 9 exams.
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ICSE-ICSE ANNUAL EXAMINATION -2020-SECTION-II
- A concave mirror is used as a reflector in torches, head lights of aut...
01:22
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- The figure below shows the velocity-time graph of a body moving in a s...
01:29
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- The figure below shows the velocity-time graph of a body moving in a s...
01:30
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- The SI unit of length is represented by the Symbol .m.. What is the...
00:24
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- When is a vernier callipers said to be free from zero error?
00:56
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- Name the principle on which screw gauge works.
03:04
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- Draw a graph (not to the scale) representing the variation of square o...
01:35
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- If the length of a simple pendulum is increased to four times the init...
03:36
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- A car travels from A to B and returns to its original position. The...
01:29
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- A car travels from A to B and returns to its original position. The...
03:18
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- A car travels from A to B and returns to its original position. The...
02:45
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- A book is kept on the table as shown in the diagram. Copy the diagram ...
02:50
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- Action and reaction act on the :
01:43
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- State Newton.s second law of motion.
06:04
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- Find the force exerted on a mass of 20 g if the acceleration produced ...
01:25
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- The change in momentum of a body is represented by Deltap=m Deltav. ...
06:36
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- Name and state the principle on which a hydraulic press works. Write o...
02:42
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- The pressure exerted on the smaller and the larger piston of a hydraul...
03:54
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- An altimeter is an aneroid barometer which makes use of the change in ...
07:36
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- An altimeter is an aneroid barometer which makes use of the change in ...
07:36
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- An altimeter is an aneroid barometer which makes use of the change in ...
01:45
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