Values of work function (Wo) for a few metals are given below Metal Li Na K Mg Cu Ag W o /eV 2.42 2.3 2.25 3.7 4.8 4.3 The number of metals which will show photoelectric effect when light of wavelength 400nm falls on it is____ Given: h = 6.6 × 10 -34 J s c = 3 x 10 8 m s -1 e = 1.6 x 10 -19 C

Question

Values of work function (Wo) for a few metals are given below Metal  Li Na K Mg Cu Ag  W o /eV 2.42 2.3 2.25 3.7 4.8 4.3 The number of metals which will show photoelectric effect when light of wavelength 400nm falls on it is____  Given: h = 6.6 × 10 -34 J s  c = 3 x 10 8 m s -1  e = 1.6 x 10 -19 C

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The correct Answer is: 3

Values of work function (Wo) for a few metals are given below
Metal Li Na K Mg Cu Ag
W_o/eV 2.42 2.3 2.25 3.7 4.8 4.3
The number of metals which will show photoelectric effect when light of wavelength 400nm falls on it is____
Given: h = 6.6 × 10^-34 J s
c = 3 x 10⁸ m s^-1
e = 1.6 x 10^-19 C

Correct Answer: 3

Solution and Explanation

Top Questions on Occurrence Of Metals

Questions Asked in JEE Main exam

Values of work function (Wo) for a few metals are given below Metal LiNaKMgCuAg Wo/eV2.422.32.253.74.84.3The number of metals which will show photoelectric effect when light of wavelength 400nm falls on it is____ Given: h = 6.6 × 10-34 J s c = 3 x 108 m s-1 e = 1.6 x 10-19 C

Correct Answer: 3

Solution and Explanation

Top Questions on Occurrence Of Metals

Questions Asked in JEE Main exam

Values of work function (Wo) for a few metals are given below
Metal Li Na K Mg Cu Ag
W_o/eV 2.42 2.3 2.25 3.7 4.8 4.3
The number of metals which will show photoelectric effect when light of wavelength 400nm falls on it is____
Given: h = 6.6 × 10^-34 J s
c = 3 x 10⁸ m s^-1
e = 1.6 x 10^-19 C