Related InterviewSolutions

• What is a systematic error ? How can it be removed ?
• The dimensional formula for angular momentum isA. `[ML^(0)L^(2)T^(-2)]`B. `[ML^(2)T^(-1)]`C. `[MLT^(-1)]`D. `[ML^(2)T^(-2)]`
• if the universe were shrunk to the size, of earth, how large would the earth be on this scale?
• The dimensional formula for conductance isA. `[M^(-1) L^(-2) T^3 A^(-2)]`B. `[M^1 L^2 T^(-3) A^2]`C. `[M^(-1)L^(-2) T^(-3) A^2]`D. `[M^(-1)L^(-2)T^3 A^2]`
• The estimated size of observable universe is of the order of………
• Give two examples of non dimensional veriables.
• What are the dimensions of rate of flow?
• Age of the universe is about `10^(10)` years whereas the mankind has existed for `10^6` years. How many seconds would the man have existed if age of universe were one day.
• State the number of significant figures in the following : (a) `0.007m^2` (b) `2.64 xx10^(24) kg` (c) `0.2370 g cm^(-3)` (d) `6.320 J` (e ) `6.032 N m^(-2)` (f) `0.0006032 m^2`
• A student measures the time period of `100` ocillations of a simple pendulum four times. The data set is `90 s`, 91 s, 95 s, and 92 s`. If the minimum division in the measuring clock is `1 s`, then the reported men time should be:A. `(92 +-2)s`B. `(92 +- 5)s`C. `(92 +- 1.8)s`D. `(92 +- 3)s`