Related InterviewSolutions

• A capillary tube `A` is dipped in water. Another identical tube `B` is dipped in detergent-water solution. Which of the following shows the correct nature of meniscus of the liquid column in the two capillary tubes?A. Both shows convex meniscusB. Meniscus in both the cases are concaveC. InA, meniscus is concave while in `B` it is convexD. InA, meniscus is convex while in `B` it is concave
• The figure shows the variation of `V` with `i` at temperatures `T_(1)` and `T_(2)`. Then `T_(1)-T_(2)` is proportional to A. `tan2alpha`B. `tanalpha`C. `sinalpha`D. `cos2alpha`
• The angular dispersion produced by a prismA. increases if the average refractive index increasesB. increases if the avergae refractive index decreasesC. remains constant without depending on refractive indexD. no relation with average refractive index
• Change in temperatureA. increases forward resistanceB. decreases forward resistanceC. affects `v-i` characteristics of `p-n` junction diodeD. does not affect `v-i` characteristics of `p-n` junction diode.
• A converging lens is used to form an image on a screen. When the upper half of the lens is covered by an opaque screenA. half the image is not seenB. full image is seen with same intensityC. full image is seen with decreased intensityD. no image is observed
• Depth of a cylindrical vessel can be measured by using Vernier Callipers by the help ofA. thin metallic strip projecting at the backB. the lower pair of jawsC. the upper pair of jawsD. both lower and upper pairs of jaws
• Statement-1 : In a Meter Bridge experiment, null point for an unknown resistance is measured. Now, the unknown resistance is put inside an enclosure maintained at a higher temperature. The null point can be obtained at the same point as before by decreasing the value of the standard resistance. Statement-2 : Resistance of metal increases with increase in temperature.A. Statement-I is true, Statement-II is falseB. Statement-I is true, Statement-II is true, Statement-II is a correct explanation for Statement-IC. Statement-I is false, Statement-II is true, Statement-II is not a correct explanation for Statement-ID. Statement-I is false, Statement-II is true
• If a cooling curve is drawn taking `t(s)` along `X-"axis"` and temperature `(theta)` along `Y-"axis"`, it appers asA. B. C. D.
• The heat capacity of a body depends onA. the quantity of heat energy supplied to itB. rise in temperature of the bodyC. the mass of the bodyD. the material of the body
• When a stationary wave is formed then its frequency isA. same as that of the individual wavesB. twice that of individual waveC. half as that of an individual waveD. four times as that of an individual wave