1
AP EAPCET 2022 - 4th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a photoelectric experiment light of wavelength 800 nm produces photoelectrons with the smallest de-Broglie wavelength of 1 nm . Light of 400 nm produces photoelectrons with smallest de-Broglie wavelength of 0.5 nm. Then the work function of the metal used in the experiment is nearly.

A
1.03 eV
B
0.53 eV
C
2.03 eV
D
4.02 eV
2
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

The metal which has the highest work function in the following is

A
Cesium (Cs)
B
Sodium ( Na )
C
Aluminium (Al)
D
Platinum (Pt)
3
AP EAPCET 2021 - 20th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

The graph between the maximum speed $$(v_{max})$$ of a photoelectron and frequency $$(\nu)$$ of the incident radiation, in photoelectric effect is correctly represented by

A
AP EAPCET 2021 - 20th August Morning Shift Physics - Dual Nature of Radiation Question 13 English Option 1
B
AP EAPCET 2021 - 20th August Morning Shift Physics - Dual Nature of Radiation Question 13 English Option 2
C
AP EAPCET 2021 - 20th August Morning Shift Physics - Dual Nature of Radiation Question 13 English Option 3
D
AP EAPCET 2021 - 20th August Morning Shift Physics - Dual Nature of Radiation Question 13 English Option 4
4
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

The de-Broglie wavelength associated with a proton under the influence of an electric potential of 100 V is

A
1.227 $$\mathop A\limits^o $$
B
2.86 pm
C
12.27 $$\mathop A\limits^o $$
D
1.146 $$\times$$ 10$$^{-21}$$ m
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