All India Engineering / Architecture Entrance Examination (AIEEE)

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AIEEE 2010 Physics

Q. 2. A particles is moving with velocity , where K is a constant. The general equation for its path is

Sol:   

Answer : (4)

Directions: Questions number 33-34 contain Statement-1 and Statement-2. Of the four choices given after the statements, choose the one that best describes t the two statements.

Q. 3. Statement-1: Two particles moving in the same direction do not lose all their energy in a completely inelastic collision.

Statement-2: Principle of conservation of momentum holds true for all kinds of collisions.

1. Statement –1 is true, Statement- 2 is true; Statement -2 is the correct explanation of Statement-1
2. Statement –1 is true, Statement- 2 is true; Statement -2 is not the correct explanation of Statement-1.
3. Statement –1 is false, Statement- 2 is true
4. Statement –1 is true, Statement- 2 is false

Sol:

By conservation of momentum, magnitude of momentum can not become zero.
So kinetic energy can not be lost completely

Answer : (1)

Q. 4.     Statement-1: When ultraviolet light is incident on a photocell, its stopping potential is V0 and the maximum kinetic energy of the photoelectrons is Kmax. When the ultraviolet light is replaced by X-rays, both V0 and Kmax increase.

              Statement-2: Photoelectrons are emitted with speeds ranging from zero to a maximum value because of the range of frequencies present in the incident light.

1. Statement –1 is true, Statement- 2 is true; Statement -2 is the correct explanation of Statement-1.
2. Statement –1 is true, Statement- 2 is true; Statement -2 is not the correct explanation of Statement-1.
3. Statement –1 is false, Statement- 2 is true
4. Statement –1 is true, Statement- 2 is false

Sol:

Answer : (4)

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