Related InterviewSolutions

• A parallel plate condenser with oil (dielectric constant 2) between the plates has capacitance C. If oil is removed, the capacitance of capacitor becomesA. `sqrt(2C)`B. 2CC. `(C)/(sqrt2)`D. `(C)/(2)`
• Which halogen can be purified by sublimation ?A. `F_(2)`B. `Cl_(2)`C. `Br_(2)`D. `I_(2)`
• In a radioactive material the activity at time `t_(1)` is `R_(1)` and at a later time `t_(2)`, it is `R_(2)`. If the decay constant of the material is `lambda`, thenA. `R_(1)=R_(2)e^(-lambda(t_(1)-t_(2)))`B. `R_(1)=R_(2)e^(lambda(t_(1)-t_(2)))`C. `R_(1)=R_(2)(t_(2)//t_(1))`D. `R_(1)=R_(2)`
• A boat at anchor is rocked by waves whose crests are `100 m` apart and whose speed is `25 m//s`. These waves reach the boat once every :A. 2500sB. 75sC. 4sD. 0.25s
• A certain nuclide has a half life period of 30 min. If a sample containing 600 atoms is allowed to decay for 90 min, how many atoms will remains?A. 200 atomsB. 450 atomsC. 75 atomsD. 150 atoms
• Which one of the following processes dependsA. ConductionB. ConvectionC. RadiationD. None of these
• The acceleration due to gravity on the planet `A` is `9` times the acceleration due to gravity on planet `B`. A man jumps to a height of `2 m` on the surface of `A`. What is the height of jump by the same person on the planet `B` ?A. 6mB. `(2)/(3)m`C. `2//9`mD. 18m
• The potential energy of a simple harmonic oscillator when the particle is half way to its end point is (where, E is the total energy)A. `(1)/(4)E`B. `(1)/(2)E`C. `(2)/(3)E`D. `(1)/(8)E`
• The gas having average speed four times as that of `SO_(2)` (molecular mass 64) isA. He (molecular mass 4)B. `O_(2)` (molecular mass 32)C. `H_(2)` (molecular mass 2)D. `CH_(4)` (molecular mass 16)
• In SHM restoring force is `F = -kx`, where k is force constant, x is displacement and a is amplitude of motion, then total energy depends uponA. K,A and MB. k,x, MC. k,AD. k,x