Related InterviewSolutions

• A bullet travelling horizontally looses `1//20^(th)` of its velocity while piercing a wooden plank. Then the number of such planks required to stop the bullet isA. 6B. 9C. 11D. 13
• The density of carbon dioxide gas at `0^(@)C` and at pressure `1.0 xx 10^(5) Nm^(-2)` is `1.98 kg m^(-3)`. Find the rms velocity of its molecules at `0^(@)C` and also at `30^(@)C`, assuming pressure to be constant.A. `423m//s`B. `300m//s`C. `100m//s`D. `500m//s`
• A particle at the end of a spring executes simple harmonic motion with a period `t_(1)` while the corresponding period for another spring is `t_(2)` if the oscillation with the two springs in series is T thenA. `T=t_(1)+t_(2)`B. `T^(2)=t_(1)^(2)+t_(2)^(2)`C. `T^(1)=t_(1)^(-1)+t_(2)^(-1)`D. `T^(2)=t_(1)^(-2)+t_(2)^(-2)`
• Find the amount of work done to increase the temperature of one mole of ideal gas by `30^(@)C` .if its is expanding under the condition `V prop R^(2//3) (R = 8.31 J//mol -K):`A. `16.62J`B. `166.2J`C. `1662J`D. `1.662J`
• One end of a copper rod of length 1.0 m and area of cross-section `10^(-3)` is immersed in boiling water and the other end in ice. If the coefficient of thermal conductivity of copper is `92 cal//m-s-.^(@)C` and the latent heat of ice is `8xx 10^(4) cal//kg`, then the amount of ice which will melt in one minute isA. `9.2xx10^(-3)kg`B. `8xx10^(-3)kg`C. `6.9xx10^(-3)kg`D. `5.4xx10^(-3)kg`
• The diagram (figure) shows a venturimeter, through which water is flowing the speed of water at X is 2cm/s. the speed of water at Y (taking `g=1000cm//s^(2)`) isA. `23cms^(-1)`B. `23cms^(-1)`C. `101cms^(-1)`D. `1024cms^(-1)`
• As per given figure to complete the circular loop what should be the radius if initial height is 5 m A. 4mB. 3mC. 2.5mD. 2m
• In the arrangement shown in figure two equal masses (each m) hung light cords wrapped around a uniform solid cylinder of mass M and radius R. The cylinder is free to roate about a harizontal axis. If the system is released from rest then, the tension in each cord is- A. `(Mmg)/(4m+M)`B. `(Mmg)/(m+M)`C. `(Mmg)/(M+3m)`D. `(Mmg)/(2m+M)`