Questions and answers by

paresh Ghosh

Questions (10)

11. If 238U92 emits successively four alpha particles two beta particles, what will be the atomic number and mass number of the
1. 2 answers
2. 562 views
10. The velocity of light in a transparent liquid is 1.8X10cm/second, while in vacuum it is 3X10^3cm/second. Find how much the
1. 1 answer
2. 567 views
9. 2 kg of water is contained in a 2.5 KW electric kittle. Assuring that the heat capacity of the kettle is negligible.
1. 0 answers
2. 605 views
8. What would be the final temperature of the mixture when .5 g of ice at -10 degree are mixed with 250g of water at 30 degree
1. 0 answers
2. 668 views
7. 50g of steam at 100 degree centigrade is passed into a mixture of 100g of ice and 200gm of water at 0 degree centigrade. Find
1. 0 answers
2. 924 views
5. An aluminium cessel of mass 200g, contains 0.5 litre of water. What is the heat required to raise the temperature of the
1. 0 answers
2. 575 views
4. A bulb is joined to a battery of e.m.f 6V. A steady current of 0.5 A flows through circuit. Calculate the total energy
1. 1 answer
2. 1,254 views
3. A house wife uses “a fire tong pair” of length 20cm to lift a piece of burning coal of mass 200gm. If she applies force
1. 0 answers
2. 446 views
2. If the wavelength of Deepika’s voice is 2 and that of Ashwaria is 5m respectively in air. Find the frequency of
1. 1 answer
2. 445 views
1. A man throws a body of mass 500gm with a velocity of 10m/s vertically upward on a planet he weight of the body on the planet.
1. 0 answers
2. 459 views

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