Question:
The photoelectric threshold wavelength of silver is 3250 × 10–10 m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536 × 10–10 m is
(Given h = 4.14 × 10–15 eVs and c = 3 × 108 ms–1)
The photoelectric threshold wavelength of silver is 3250 × 10–10 m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536 × 10–10 m is
(Given h = 4.14 × 10–15 eVs and c = 3 × 108 ms–1)
(Given h = 4.14 × 10–15 eVs and c = 3 × 108 ms–1)
Updated On: Apr 23, 2026
- ≃ 6 × 105 ms–1
- ≃ 0.6 × 106 ms–1
- ≃ 61 × 103 ms–1
- ≃ 0.3 × 106 ms–1
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The Correct Option is A, B
Solution and Explanation
The correct options are (A): ≃ 6 × 105 ms–1 and (B): ≃ 0.6 × 106 ms–1.
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A. एक चालक के भीतर स्थिरवैद्युत क्षेत्र शून्य होता है।
B. आवेशित चालक के पृष्ठ पर विद्युत क्षेत्र उसके पृष्ठीय आवेश घनत्व पर निर्भर नहीं करता।
C. एक आवेशित चालक के भीतर, स्थिर स्थिति में कोई आधिक्य आवेश नहीं हो सकता।
D. आवेशित चालक के पृष्ठ पर, प्रत्येक बिंदु पर, स्थिरवैद्युत क्षेत्र पृष्ठ के लंबवत होना चाहिए।
E. आवेशित चालक के भीतर, प्रत्येक स्थान पर स्थिरवैद्युत विभव शून्य होता है।
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