Verified Solution • 2025–26 Session moderate

QAIPM-2011-Ph-1824: NEET 2011 Physics - Class 11 AIPM-2011-Ph-1824 Solution: The threshold frequency for a photosensitive metal is \(3.3…

The threshold frequency for a photosensitive metal is 3.3×1014 Hz3.3 \times 10^{14}\ \text{Hz}. If light of frequency 8.2×1014 Hz8.2 \times 10^{14}\ \text{Hz} is incident on this metal the cut-off voltage for the photoelectron emission is nearly 1 V 2 V 3 V 5 V

Multiple Choice Options

  • A π6{\pi \over 6} 6 � _
  • B 0
  • C 2π3{{2\pi } \over 3} 3 2 � _
  • D π\pi �

Step-by-Step Verified Solution

Equation of SHM is given by x = A sin _ ( _ t + _ ) ( _ t + _ ) is called phase. When x = A 2 , then sin _ ( _ t + _ ) = 1 2 _ _ t + _ = � 6 _ _ 1 = � 6 For second particle, _ 2 = � _ � 6 = 5 � 6 _ _ = _ 2 _ _ 1 = 4 � 6 = 2 � 3

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