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Light is shined into a glass rod. To guarantee the total internal reflection (TIR) happens to all the possible rays, what is the minimum index of refraction n for the glass?
Hint: To make sure all rays TIR inside the rod, you just need to consider an extreme case, i.e., the incident angle q1 (on the top surface of glass rod) equals to 90o.
What is the name of the temperature and pressure conditions at which water can be in the solid, liquid and gas phases simultaneously? Ans: The name of the temperature and pr
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a ball is thrown horizontally from a point 100 m above the ground with a speed of 20 m/sec .find the time it takes to reach the ground...
Give two basic important characteristics of nuclear forces? Neutrons are the best projectiles of process of nuclear reactions. Why? Give any two properties of neutron.
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who is first law of motion?
APPLICATION TO BALLISTIC MISSILES: "An unpowered and unguided missile is known as ballistic missile". The path followed by ballistic missile is known as "ballistic trajectory"
sensitivity of moving coil galvanometer can be increased by decreasing?
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