Related InterviewSolutions

• The dimensional formula of wave number isA. `[M^(o)L^(o)T^(-1)]`B. `[M^(-1)L^(-1)T^(o)]`C. `[M^(o)L^(-1)T^(o)]`D. `[M^(o)L^(o) T^(o)]`
• The method of dimensional analysis can be used to derive which of the following relations ?A. `N_0e^(-lamdat)`B. `A sin (omegat+ kx)`C. `(1)/(2)mv^(2) + (1)/(2) I omega^(2)`D. None of the above
• Which of the following does not have the dimensior of force ?A. Potential gradientB. Energy gradientC. WeightD. Rate of change of momentum
• The SI unit of entropy isA. joule/kelvinB. newton-meterC. calorie/secondD. joule/calorie
• If E, M, L and G denote energy, mass, angular momentum and gravitational constant repectively then the quantity `(E^(2)L^(2)//M^(5)G%(2))` has the dimensions of :-A. angleB. lengthC. massD. None of these
• Temperature can be expressed as a derived quantity in terms of anyof the followingA. Length and massB. Mass and timeC. Length, mass and timeD. None of these
• The dinesity of meterial in CGS system of mass is `4g cm^(3)` in a system of unit in which unit of length is `10 cm` and unit of mass is `100g` the value of density of meterial will beA. `0.04`B. `0.4`C. `40`D. `400`
• One centimetre on the main scale of vernier callipers is divided into ten equal parts. If 20 divisions of vernier scale coincide with 19 small divisions of the main scale then what will be the least count of the callipers.
• In a vernier callipers, N divisions of vernier scale coincide with (N-1) divisions of main scale (in which 1 division represents 1 mm). The least count of the instrument in cm should beA. `N`B. `N-1`C. `(1)/(10N)`D. `(1)/(N-1)`
• Measure of two quantites along with the precision of respective measuring instrument is `A = 2.5 ms^(-1) +- 0.5 ms^(-1)` `B = 0.10 s +- 0.01s` The value of AB will beA. `(0.25 pm 0.08)` mB. `(0.25 pm 0.5)` mC. `(0.25 pm 0.05)` mD. `(0.25 pm 0.135)`m