Optical fibre works on which of the following principle of light?
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Formula for distance is
Which of the following device is used to measure humidity?
A lemon kept in water in a glass tumbler appears to be bigger than its actual size when viewed from the sides. This is because of
If an object moves in a circular path with uniform ________, its motion is called uniform circular motion.
Which one of the following takes place during a nuclear fusion?
Convex and concave mirrors are examples of?
In a streamline flow, ________ at every point in the fluid remains same.
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