Related InterviewSolutions

• A man standing in a swimming pool looks at a stone lying at the bottom. The depth of the swimming pool is h. At what distance from the surface of water is the image of the stone formed -A. `h/mu`B. `mu/h`C. `h`D. `muh`
• A fish in water sees an object which is `24cm` above the surface of water. The height of the object above the surface of water that will appear to the flash is `(mu=4//3)`A. `24cm`B. `32cm`C. `18cm`D. `48cm`
• A ray of light is incident on the surface of a glass plate of thickness `t`. If the angle of incidence `theta` is small, the emerging ray would be displaced side ways by an amount (Take `n` = refractive index of glass)A. `tthetan//(n+1)`B. `ttheta(n-1)//n`C. `tthetan//(n-1)`D. `ttheta//(n+1)//n`
• Light passes through a glass slab with parallel sides and thickness t. If i and r the angles of incidence of refraction, the lateral displacement isA. `tsin(i-r)`B. `tcosr`C. `tsin(i-r)//cosr`D. `t tan r`
• A fish looking up through the water sees the outside world contained in a circular horizon. If the refractive index of water is `4//3` and the fish is `12cm` below the surface, the radius of this circle in cm isA. `36sqrt5`B. `4sqrt5`C. `36sqrt7`D. `36//sqrt7`
• The apparent depth of water in cylindrical water tank of diameter `2R cm` is reducing at the rate of `x cm // min ` when water is being drained out at a constant rate. The amount of water drained in `c.c.` per minute is `(n_(1)=` refractive index of air, `n_(2)=` refractive index of water )A. `xpiR^2n_1/n_2`B. `xpiR^2n_2//n_1`C. `2piR^2n_1//n_2`D. `piR^2x`
• The refractive index of water, glass and diamond are `1.33`, `1.50`, `2.40` respectively. The refractive index of diamond relative to water and of glass relative of diamond, respectively are nearlyA. `1.80`, `0.625`B. `0.554`, `0.625`C. `1.80`, `1.6`D. `0.554`, `1.6`
• A ray of light is incident at the glass-water interface at an angle I, it emerges fimally parallel to the surface of water, the the value of `mu_g` would be A. `(4//3)sini`B. `1//sini`C. `4//3`D. `1`
• If `._imu_j` represnts the refractive index when a ray of light goes from medium i to j, then the product `._2mu_1xx._1mu_3xx._3mu_4` is equal toA. `._3mu_1`B. `._3mu_2`C. `._2mu_3`D. `._2mu_4`
• A prism of a certain angle deviates the red and blue rays by `8^@` and `12^@` respectively. Another prism of the same angle deviates the red and blue rays by `10^@` and `14^@` respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratioA. `5:6`B. `9:11`C. `6:5`D. `11:9`