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1.

STATEMENT-1: Electric or magnetic lines of force do not intersect. STATEMENT-2: The tangent drawn to a line of force gives the direction of the intensity at that point.A. Statement-1 is True , Statement-2 is True, Statement-2 is a correct explanation for Statement-1.B. Statement-1 is True , Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.C. Statement-1 is True , Statement-2 is False.D. Statement-1 is False , Statement-2 is True.

Answer» Correct Answer - A
Discussion
2.

STATEMENT-1: An open organ pipe can be used as a musical instrument but not a closed organ pipe. STATEMENT-2: The fundamental frequency of an open orgna pipe is twice the fundamental frequency of a closed organ pipe of the same length.A. Statement-1 is True , Statement-2 is True, Statement-2 is a correct explanation for Statement-1.B. Statement-1 is True , Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.C. Statement-1 is True , Statement-2 is False.D. Statement-1 is False , Statement-2 is True.

Answer» Correct Answer - B
Discussion
3.

A vertical tank, open at the top, is filled with a liquid and rests on a smooth horizontal surface. A small hole is opened at the centre of one side of the tank. The area of cross-section of the tank is N times the area of the hole, where N is a large number. Neglect mass of the tank itself. The initial acceleration of the tank isA. `(g)/(2N)`B. `(g)/(sqrt(2)N)`C. `(g)/(N)`D. `(g)/(2sqrt(N))`

Answer» Correct Answer - C
Discussion
4.

A string of length 2 m is fixed at both ends. If this string vibrates in its fourth normal mode with a frequency of 500 Hz then the waves wouldf travel on it is with a velocity ofA. `(2lv)/(V)`B. `(2lV)/(v)`C. `(lV)/(v)`D. 2l

Answer» Correct Answer - A
Discussion
5.

A positively charged particle P enters the region between two parallel plates with a velocity u, in a direction parallel to the plates. There is a uniform electric field in this region. P emerges from this region with a velocity v. Taking C as a constant, v will depend on u as A. `v=alphau`B. `v=sqrt(u^(2)+alphau)`C. `v=sqrt(u^(2)+(alpha)/(u))`D. `v=sqrt(u^(2)+(alpha)/(u^(2))`

Answer» Correct Answer - D
Discussion
6.

The average number of degree of freedom per molecule for a gas is 7. A sample of the gas perform 30 J of work when it expands at constant pressure. Find the heat absorbed by the gas in the process.A. 3B. 4C. 5D. 6

Answer» Correct Answer - B
Discussion