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1.

Which of the distance option(s) can be connect for a moving particle here, s is displacement, a is acceleration, and v is velocityA. a = 0, s = 0B. `a ne 0, v = 0`C. `a ne 0, s = 0`D. `s ne 0, v = 0`

Answer» Correct Answer - A::B::C::D
Discussion
2.

Select the correct statement :A. Average speed of a particel in a given time is never less than the magnitude of the average velocityB. It is possible to have a situation in which `|(dvec(v))/(dt)|ne 0` but `(d|vec(v)|)/(dt)=0`C. The average velocity of a particle is zero in a time interval then it is possible that the instantaneous velocity is neverzero in the interval.D. The average velocity of a particle moving on a straight line is zero in a time interval. It is possible that the intantaneous velocity is neverzero in the interval. (Infinite acceleration are not allowed.)

Answer» Correct Answer - A::B::C
Discussion
3.

Which of the following set(s) of quantity (ies) can replace mass, length and time in the set of fundamental quantities.A. Density area and frequencyB. Force, power and velocityC. Speed, acceleration and volumeD. Forcem, density and velocity

Answer» Correct Answer - A::D
Discussion
4.

Which of the following cannot be the group of fundamental quantities. (Here M is mass, L is length, T is time, F is force, A is acceleration, V is velocity)A. (M,L,V)B. (F,L,T)C. (M,L,T)D. (A,V,L)

Answer» Correct Answer - D
Discussion
5.

Select correct statementsA. Different physical quantities cannot have same dimensional formulaB. Dimension less quantity can not have any unitC. Unit less quantity can not have any dimensionD. Unit less quantity can have dimensional formula

Answer» Correct Answer - C
Discussion
6.

Statement-1: A man can not walk by himself on frictionless floor. Statement-2: In the absence of frinction we can not push the floor tangentially backward.A. Statement-1 is true.B. Statement-1 is false.C. Statement-2 is true.D. Statement-2 is false.

Answer» Correct Answer - A::C
Discussion
7.

Statement-1 : Karman Malleshwari famous indian weight lifter lifts a weight up and returns it to same initial position along the same path. Not work done by muscles of weight lifter is positive. Statement-2 : Net displacement of weight is zero.A. Statement-1 is true.B. Statement-1 is false.C. Statement-2 is true.D. Statement-2 is false.

Answer» Correct Answer - A::C
Discussion
8.

The electronic configuration of atomic number Uup would be:A. `[Rn]5f^(14)6d^(10)7s^(2)7p^(3)`B. `[Rn]5f^(14)6d^(10)7s^(1)7p^(4)`C. `[Rn]4f^(14)5d^(10)6s^(2)6p^(3)`D. `[Rn]5f^(14)6d^(1)7s^(2)7p^(3)`

Answer» Correct Answer - A
Discussion
9.

Vapour density of a gaseous mixture containing `16 g CH_(4)`, 2 g-molecules of `CO_(2),44.8 L` of `O_(2)` at 1 atm & `273K & 3 xx 10^(24)` molecules of `N_(2)` present in a container. `["Given"-N_(A)=6xx10^(23)]`A. 30.8B. 15.4C. 32.2D. 12.8

Answer» Correct Answer - B
Discussion