01/01/2021
1. Pair of quantities having same dimensional formula are
a) velocity , Impulse b) Force, Weight C) Impulse ,Inertia d) Angular momentum, Linear momentum
2. If R is resistance and C is the capacitance, then the dimensions of RC will be same as the dimensions of . . . .
a)time b) speed c) frequency d) acceleration
3. Which is the physical quantity whose dimensional formula is M1L0T-2 is
a) Bulk Modulus b) Electric conductance c) Surface tension d) Frequency
4. Which of the following is dimensionally correct formula.
a)V=ut + at b) v+u = at c) V/u =at d) vt = u -a
5. If u1 and u2 are the units of a physical quantity and n1 and n2 are the numerical values, then
1. n1u2 = n2u1 2. n1u1 =n2u2 3. n1n2 = u1u2 4. None of the above
6. If the dimensional formula of force is M^aL^bT^c. Then a+b+c is;
a. 0 b. 4 c. 2 d. 1
7. Which pair doesn't have same dimensional formula.
a. Moment and momentum b. Frequency and angular velocity c. Impulse and momentum d. force and weight
8. The error in measurement of g is 1% and that of time period of simple pendulum is 2%, the error in measurement of length is:
a. 5% b. 3% c. 1% d. 0%
9. The correct physical equation is
a. dimensionally correct
b. may be correct dimensionally.
c. is not dimensionally correct
d. None
10. In the data measurement, it is expected to be
a. precise but not accurate
b. accurate but not precise
c. both accurate and precise
d. neither accurate nor precise
