1. | \(1.4\) eV | 2. | \(1.7\) eV |
3. | \(5.4\) eV | 4. | \(6.8\) eV |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor photoelectric emission from certain metals, the cutoff frequency is \(\nu\). If radiation of frequency \(2\nu\) impinges on the metal plate, the maximum possible velocity of the emitted electron will be:
(\(m\) is the electron mass)
1. | \(\sqrt{\dfrac{h\nu}{m}}\) | 2. | \(\sqrt{\dfrac{2h\nu}{m}}\) |
3. | \(2\sqrt{\dfrac{h\nu}{m}}\) | 4. | \(\sqrt{\dfrac{h\nu}{2m}}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | \(1\) V | 2. | \(2.1\) V |
3. | \(3.1\) V | 4. | Zero |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
1. | \(A\) | 2. | \(B\) |
3. | \(C\) | 4. | None of these |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | \(1.2\) eV | 2. | \(0.98\) eV |
3. | \(0.45\) eV | 4. | \(0\) eV |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe work functions for metals \(A,B,\) and \(C\) are respectively \(1.92\) eV, \(2.0\) eV, and \(5\) eV. According to Einstein's equation, the metals that will emit photoelectrons for a radiation of wavelength \(4100~\mathring{A}\) is/are:
1. None
2. \(A\) only
3. \(A\) and \(B\) only
4. All the three metals
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | \(\dfrac{32}{11} \) | 2. | \(\dfrac{42}{11} \) |
3. | \(\dfrac{52}{11} \) | 4. | \(\dfrac{62}{11}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
The photosensitive material's work function is \(4.0\) eV. The longest wavelength of light that can cause a substance's photoelectric emission is approximately:
1. \(3100\) nm
2. \(966\) nm
3. \(31\) nm
4. \(310\) nm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology