MHT CET · Physics · Dual Nature of Matter
Following graph shown the variation of stopping potential corresponding to the frequency of incident radiation \((v)\) for a given metal. The correct variation is shown in graph [ \(v_0=\) threshold frequency]
- A (C)
- B (B)
- C (A)
- D (D)
Answer & Solution
Correct Answer
(C) (A)
Step-by-step Solution
Detailed explanation
Concept: Stopping potential \(V\) is related to the maximum kinetic energy \(K_{\max }\) of the photoelectrons, via Einstien's photo-electric effect relation:
\(e V=K_{\max }=h v-h v_0\)
Therefore,
\(V=\left(\frac{h}{e}\right) v-\left(\frac{h}{e}\right) v_0\)
Therefore, \(V\) vs \(v\) is straighline with positive slope and at \(v=v_0\) the stopping potential is zero.
\(e V=K_{\max }=h v-h v_0\)
Therefore,
\(V=\left(\frac{h}{e}\right) v-\left(\frac{h}{e}\right) v_0\)
Therefore, \(V\) vs \(v\) is straighline with positive slope and at \(v=v_0\) the stopping potential is zero.
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
- For a given material, the Young's modulus is \(2.4\) times that of rigidity modulus. Its poisson's ratio isMHT CET 2009 Easy
- Select the WRONG statement from the following. In a streamline flowMHT CET 2023 Easy
- \(\mathrm{A}, \mathrm{B}\) and \(\mathrm{C}\) are three parallel conductors of equal lengths and carry currents I, I and 2I respectively as shown in figure. Distance \(A B\) and \(B C\) is same as ' \(d\) '. If ' \(F_1\) ' is the force exerted by \(\mathrm{B}\) on \(\mathrm{A}\) and \(\mathrm{F}_2\) is the force exerted by \(\mathrm{C}\) on \(\mathrm{A}\), then
MHT CET 2023 Hard - In amplitude modulationMHT CET 2018 Easy
- Two batteries of e.m.f 4 V and 8 V with internal resistance \(1 \Omega\) and \(2 \Omega\) respectively are connected in a circuit with a resistance of \(9 \Omega\) as shown in the figure. The current and potential difference between the points ' P ' and ' Q ' is
MHT CET 2025 Medium - When the string is stretched between two rigid supports, under certain tension and vibratedMHT CET 2024 Easy
More PYQs from MHT CET
- Which of the following compounds does NOT react with sodium metal?MHT CET 2020 Medium
- The major product formed in carbylamine reaction isMHT CET 2024 Medium
- A convex lens is dipped in a liquid whose refractive index is equal to refractive index of lens material. Then its focal length willMHT CET 2021 Medium
- A stone is projected vertically upwards with velocity ' \(\mathrm{V}\).
Another stone of same mass is projected at an angle of \(60^{\circ}\) with the vertical with the same speed (V). The ratio of their potential energies at the highest points of their journey, isMHT CET 2021 Medium - The locus of a point of intersection of two lines \(x \sqrt{3}-y=k \sqrt{3}\) and
\(\sqrt{3} k x+k y=\sqrt{3}, k \in R\), describesMHT CET 2020 Easy - Semen produced by human male reproductive system contains following components EXCEPT _________ .MHT CET 2023 Easy