The massive hole in the ozne layer over the Antharctica was first discovered in1). 19762). 19853). 19604). None of these?
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1. Question 4.19:Read each statement below carefully and state, with reasons, if it is true or false:(a) The net acceleration of a particle in circular motion is always along the radius of the circle towards the centre(b) The velocity vector of a particle at a point is always along the tangent to the...
2. If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same:
3. Atoms of same element having different mass numbers are called
4. Total internal reflection cannot take place when light goes from:
5. Which one type of radiation has the longest wave length
6. "God Particle" is
7. Question 12.5:In changing the state of a gas adiabatically from an equilibrium state A to another equilibrium state B, an amount of work equal to 22.3 J is done on the system. If the gas is taken from state A to B via a process in which the net heat absorbed by the system is 9.35 cal, how much is...
8. Question 5.5:A closely wound solenoid of 800 turns and area of cross section 2.5 × 10−4 m2 carries a current of 3.0 A. Explain the sense in which the solenoid acts like a bar magnet. What is its associated magnetic moment?
9. Good conductor of electricity is
10. The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ?
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