✓✗If C and R denote capacitance and resistance, the dimensional formula of CR is

✓✗The damping force on an oscillator is directly proportional to the velocity. The units of the constant proportionality are

✓✗The dimensional formula of angular momentum is

✓✗A physical quantity of the dimensions of length that can be formed out of c, G and is [c is velocity of light, G is the universal constant of gravitation and e is charge]

✓✗The main scale of a vernier callipers has n divisions/cm. n divisions of the vernier scale coincide with (n – 1) divisions of main scale. The least count of the vernier callipers is,

✓✗If force (F), velocity (V) and time (T) are taken as fundamental units, then the dimensions of mass are

✓✗Which of the following has the dimensions of pressure?

✓✗The dimensions of RC is

✓✗The dimensions of impulse are equal to that of

✓✗Which pair do not have equal dimensions?

✓✗If x = at + bt², where x is the distance travelled by the body in kilometers while t is the time in seconds, then the units of b is

✓✗A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular scale division coincides with 25 divisions above the reference level. If screw gauge has a zero error of –0.004 cm, the correct diameter of the ball is

✓✗Dimensional formula of self inductance is

✓✗The pair of quantities having same dimensions is

✓✗Which of the following is a dimensional constant?