Question

1.what do you mean by unit?
[1]
2.Write two physical quantities having same dimensional formula. [1]
3.Write the dimensional formula of any four from the given physical quantities
(a) Potential difference V (b) Capacitance C(c) Inductance L (d) Resistance R
(e) G (f) Moment of force.
[2]
4. Rounding off the following numbers
(i) 93.35 upto 3 digits (ii) 32.653 upto 3 digits (iii) 491.55x106 upto 4 digits
(iv) 357445 upto 3 digits.
[2]
5. What are basic quantities? Write their S. Units and Symbols.
[3]
6.Using the dimensional analysis derive an expression for time period of a
simple pendulum.
[3]
7.identify the no of significant figures of the following.
[3]
(a) 0.008m' (b) 5500m (c) 600. (d)6.0453 (e) 5.6x1025 (1) 0.0008102m?
8.(a) What do you mean by errors in measurement? Explain briefly the different
types of errors.
(3+2)
(b) Calculate the % error in X, if X=a'b/cd. Where % of error in a is 3%,in bis
2%, In eis 4% and in d is 1%.​

Answer 1

Answer:

We both are in same class and same chapter