MHT CET · Physics · Wave Optics
A plane wave front of wavelength \(\lambda\) is incident on a single slit of width \(b\). What is the angular width for secondary maximum?
- A \(\frac{\lambda}{2 b}\)
- B \(\frac{\lambda}{b}\)
- C \(\frac{2 \lambda}{b}\)
- D \(\frac{b}{\lambda}\)
Answer & Solution
Correct Answer
(B) \(\frac{\lambda}{b}\)
Step-by-step Solution
Detailed explanation
\(\beta=\frac{\lambda D}{d}\) and \(\theta=\frac{\beta}{D}\)
\(\therefore\) \(
\theta=\frac{\lambda}{d}
\)
Width of single slit \(=b\)
So,
\(
\theta=\frac{\lambda}{b}
\)
\(\therefore\) \(
\theta=\frac{\lambda}{d}
\)
Width of single slit \(=b\)
So,
\(
\theta=\frac{\lambda}{b}
\)
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 person is observing a bacteria through a compound microscope. For better analysis and to improve the resolving power he shouldMHT CET 2024 Easy
- The resultant gate and its Boolean expression for the given circuit is
MHT CET 2020 Easy - A transformer having efficiency of \(90 \%\) is working on \(200 \mathrm{~V}\) and \(3 \mathrm{~kW}\) power supply. If the current is the secondary coil is \(6 \mathrm{~A}\), the voltage across the secondary coil and the current in the primary coil respectively areMHT CET 2022 Medium
- In a Wheatstone bridge, three resistance \(P, Q\) and \(R\) are connected in the three arms and the fourth arm is formed by two resistances \(S_1\) and \(S_2\) connected in parallel. The condition for the bridge to be balanced isMHT CET 2021 Medium
- If the temperature of a hot body is increased by \(50 \%\), then the increase in the quantity of emitted heat radiation will be approximatelyMHT CET 2023 Medium
- In a radioactive material the activity at time \(t_{1}\) is \(R_{1}\) and at a later time \(t_{2}\), it is \(R_{2}\). If the decay constant of the material is \(\lambda\), thenMHT CET 2007 Medium
More PYQs from MHT CET
- Two stones of masses m and 3 m are whirled in horizontal circles, the heavier one in a radius \(\left(\frac{\mathrm{r}}{3}\right)\) and lighter one in a radius r . The tangential speed of lighter stone is ' \(n\) ' times the value of heavier stone. When the magnitude of centripetal force becomes equal the value of \(n\) isMHT CET 2025 Medium
- Action of hydrogen iodide on anisole gives,MHT CET 2019 Medium
- Which of the following units of electrical measurement is not equivalent to 1 Siemen?MHT CET 2024 Easy
- A vessel completely filled with water has holes and at depths and from the top respectively. The hole is a square of side and is a circle of radius . The water flowing out per second from both the holes is same. Then is equal toMHT CET 2018 Hard
- Charge on a parallel plate capacitor of capacity C is Q, the electric field intensity between its two plates separated by a distance of \(t\) isMHT CET 2024 Easy
- The role of microelements in synthesis of organic food by plants is ______________ .MHT CET 2024 Medium