enEnglishguગુજરાતી
GUJCET · Physics · Ray Optics and Optical Instruments
Light waves travel from optically rarer medium to optically denser medium. Its velocity decreases because of change in ________ .
- A wavelength
- B frequency
- C amplitude
- D phase
Answer & Solution
Correct Answer
(A) wavelength
Step-by-step Solution
Detailed explanation
(A) wavelength
Velocity \(v=\nu \lambda\)
Frequency remains constant as the medium changes
Thus, \(v \propto \lambda(v=\) constant \()\)
as the velocity changes the wavelength changes.
Velocity \(v=\nu \lambda\)
Frequency remains constant as the medium changes
Thus, \(v \propto \lambda(v=\) constant \()\)
as the velocity changes the wavelength changes.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- In Young's double slit experiment, if the distance between two slits is equal to the wavelength of used light. Then the maximum number of bright fringes obtain on the screen will be __________ .GUJCET 2017 Easy
- Two large, thin metal plates are parallel and close to each other on their inner faces, the plates have surface charge densities of same signs and of magnitude \(17.7 \times 10^{-22} C / m ^2\). What is E in the outer region of the second plate?GUJCET 2021 Medium
- What is the type of nature of image formed for an object placed an axis of concave mirror between pole and centre ?GUJCET 2020 Medium
- A sine voltage having maximum value of 283 V \& frequency of 35.4 Hz is applied to LCR series connection where \(\mathrm{R}=3 \Omega, \mathrm{~L}=25.48 \mathrm{mH}\) \& \(C=796 \mu F\). Then impedance is ____________ at resonance condition.GUJCET 2020 Easy
- As shown in below circuit, the effective capacitance is _________ \(\mu F\).
GUJCET 2006 Medium - The potential at the point B in the given figure is __________ V.
GUJCET 2024 Medium
More PYQs from GUJCET
- \(\int_{\frac{-\pi}{2}}^{\frac{\pi}{2}}\left(x^5-x^3 \cos x+\sin ^3 x-3\right) d x=\) __________GUJCET 2024 Hard
- \(C _6 H _6+ X \xrightarrow[\Delta AlCl _3]{\text { Anhydrous }} \text{Isopropylbenzene} \xrightarrow[\text { (ii) } H ^{+}]{\text {(i) } O _2} { Y }+{ Z }\)
In this reaction \(X , Y\) and Z are ___________ respectively.GUJCET 2025 Medium - The wavelength of Gamma rays, X-rays and microwaves are respectively \(\lambda_{r}, \lambda_{x}\) and \(\lambda_{m}\) then __________ .GUJCET 2016 Medium
- Which statment is incorrect for tetra chloro methane ?GUJCET 2016 Medium
- The electric potential at any point (x, y, z) (all in meters) in space is given by \(V =5 x^2\) volt. The electric field at the point (1,2,3) m is \(\overrightarrow{ E }=\) ________ \(\frac{ N }{ C }\).GUJCET 2013 Medium
- The speed of light in a medium is \(200 \times 10^8 cm / s\). Refractive index of a medium is ___________ \(\left( c =3 \times 10^8 m / s \right)\).GUJCET 2025 Hard