When light enters from air to water,then its

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) When light travels from one medium to another,its frequency remains constant because it depends on the source of light.Since the refractive index

Vedclass · Accepted Answer

Frequency is same but the wavelength is smaller in water than in air

Vedclass · Answer

(B) When light travels from one medium to another,its frequency remains constant because it depends on the source of light.Since the refractive index of water $(n_w \approx 1.33)$ is greater than that of air $(n_a \approx 1.0)$,the speed of light decreases in water $(v = c/n)$.According to the relation $v = f \lambda$,since $v$ decreases and $f$ remains constant,the wavelength $\lambda$ must also decrease.Therefore,the frequency remains the same,but the wavelength is smaller in water than in air.

Similar Questions

The refractive index of water is $1.33$. The direction in which a man under water should look to see the setting sun is

$A$ ray of light passes through four transparent media with refractive indices $\mu_1, \mu_2, \mu_3$ and $\mu_4$ as shown in the figure. The surfaces of all media are parallel. If the emergent ray $CD$ is parallel to the incident ray $AB$,we must have

$A$ fish in water (refractive index $n$) looks at a bird vertically above in the air. If $y$ is the height of the bird and $x$ is the depth of the fish from the surface,then the distance of the bird as estimated by the fish is

The refractive indices of glass and water with respect to air are $3/2$ and $4/3$ respectively. The refractive index of glass with respect to water will be

Monochromatic light of frequency $5 \times 10^{14} \ Hz$ travelling in vacuum enters a medium of refractive index $1.5$. Its wavelength in the medium is ....... $\mathring{A}$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module