Related InterviewSolutions

• If error in measuring diameter of a circle is 4 %, the error in the radius of the circle would beA. 0.02B. 0.08C. 0.04D. 0.01
• The pressure on a square plate is measured by measuring the force on the plate and the length of the sides of the plate. If the maximum error in measurement of force and length are respectively 4% and 2%, the maximum error in the measurement of pressure isA. 0.01B. 0.02C. 0.06D. 0.08
• If error in measuring diameter of a circle is 4 %, the error in circumference of the circle would be :-A. 0.02B. 0.08C. 0.04D. 0.01
• A wire has a mass `0.3+-0.003g`, radius `0.5+-0.005mm` and length `6+-0.06cm`. The maximum percentage error in the measurement of its density isA. 1B. 2C. 3D. 4
• Using the expression `2d sin theta = lambda`, one calculates the values of `d` by measuring the corresponding angles `theta` in the range `0 to [email protected]`. The wavelength `lambda` is exactly known and error in `theta` is constant for all values of `theta`. As `theta` increases from `[email protected]`A. the absolute error in d remains constantB. the absolute error in d increasesC. the fractional error in d remains constantD. the fractional error in d decreases
• Using the expression `2d sin theta = lambda`, one calculates the values of `d` by measuring the corresponding angles `theta` in the range `0 to [email protected]`. The wavelength `lambda` is exactly known and error in `theta` is constant for all values of `theta`. As `theta` increases from `[email protected]`A. the absolute error in d remains constantB. the absolute error in d increasesC. the fractional error in d remains constantD. the fractional error in d decreases
• 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 pm 3s`B. `92 pm 2s`C. `92 pm 5.0 s`D. `92 pm 1.8 s`
• in an experiment the angles are required to be using an instrument, `29` divisions of the main scale exactly coincide with the `30` divisions of the vernier scale. If the sallest division of the main scale is half- a degree `(= 0.5^(@)`, then the least count of the instrument is :A. One degreeB. Half degreeC. One minuteD. Half-minute
• A spectrometer gives the following reading when used to measure the angle of a prism. Main scale reading : `58.5 degree` Vernier scale reading : `09` divisions Given that `1` division on main scale correspods to `0.5` degree. Total divisions on the vernier scale is `30` and match with `29` divisions of the main scale. the angle of the prism from the above data:A. 59 degreeB. 58.59 degreeC. 58.77 degreeD. 58.65 degree
• A student performs an experiment for determination of ` g [ = ( 4 pi^(2) L)/(T^(2)) ] , L ~~ 1m` , and he commits an error of `Delta L`. For `T` he takes the time of `n` oscillations with the stop watch of least count ` Delta T` . For which of the following data , the measurement of `g` will be most accurate ?A. `Delta L = 0.5, Delta T - 0.1, n = 20`B. `Delta L = 0.5, Delta T = 0.1,n = 50`C. `DeltaL = 0.5, Delta T = 0.01, n = 20`D. `Delta L= 0.1, Delta T = 0.05, n = 50`