enEnglishguગુજરાતી
GUJCET · Physics · Ray Optics and Optical Instruments
Find the value of angle of emergence for a emergent ray from the prism in the figure given below.
(refractive index of material of prism is \(\sqrt{3}\) and refractive index of air is 1)
- A \(60^{\circ}\)
- B \(45^{\circ}\)
- C \(30^{\circ}\)
- D \(90^{\circ}\)
Answer & Solution
Correct Answer
(A) \(60^{\circ}\)
Step-by-step Solution
Detailed explanation
\(1 \cdot \sin 60^{\circ} = \sqrt{3} \sin r_1 \implies \sin r_1 = \frac{\sqrt{3}/2}{\sqrt{3}} = 1/2 \implies r_1 = 30^{\circ}\) \(A = r_1 + r_2 \implies 60^{\circ} = 30^{\circ} + r_2 \implies r_2 = 30^{\circ}\)
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
- A transformer with \(80 \%\) efficiency works at 4 kW and 100 V. If the secondary voltage is 240 V. Then the primary current is ____________ .GUJCET 2006 Easy
- At time \(t=0\) second, voltage of an AC Generator starts from 0 V and becomes 2 V at time \(t=\frac{1}{100 \pi}\) second. The voltage keeps on increasing up to 100 V , after which it starts to decrease. Find the frequency of the generator.GUJCET 2008 Medium
- Calculate the energy equivalent of 1 g of substance \(\qquad\) .GUJCET 2020 Medium
- The unit of electric field intensity is _________.GUJCET 2006 Medium
- A tank is filled with water to a height of 16 cm . Find the apparent depth of a needle lying at the bottom of the tank is measured by a microscope. Refractive index of water \(\left(\mu_{w}\right)\) is \(\frac{4}{3}\)GUJCET 2021 Easy
- The output voltage of a step-down transformer is measured to be 24 V , when connected to a 12 watt light bulb. The value of the peak current is ___________ .GUJCET 2025 Easy
More PYQs from GUJCET
- If \(A=\left[\begin{array}{ll}0 & 1 \\ 1 & 0\end{array}\right]\), then \((A+I)^3+(A-I)^3=\) ___________ .GUJCET 2025 Hard
- \(\int \frac{x}{(x-1)(x-2)} d x=\) __________ \(+C\).GUJCET 2022 Medium
- If A and B are mutually exclusive events. \(P ( A )=\frac{1}{2}, P ( A \cup B )=\frac{3}{5}\) and \(P \left( B ^{\prime}\right)=p\) then, \(p=\) _________ .GUJCET 2021 Hard
- What is the value of slope when graph plotted of \(\log \frac{[R]_0}{[R]}\) Vs \(t\) (time) for first order reaction?GUJCET 2022 Easy
- Which of the following complex does not show optical isomerism?GUJCET 2014 Easy
- \(\vec{c}\) is a unit vector in the direction of sum of vectors \(\vec{a}\) and \(\vec{b}\) Where, \(\vec{a}=2 \hat{i}+2 \hat{j}-5 \hat{k}\) and \(\vec{b}=2 \hat{i}+\hat{j}+3 \hat{k}\) then \(|\vec{c}|=\) _________ .GUJCET 2021 Easy