1
MHT CET 2023 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following electromagnetic radiations possesses lowest energy?

A
Radio waves
B
Microwaves
C
Infrared
D
Ultraviolet
2
MHT CET 2023 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the wave number of photon emitted during transition from the orbit of $$n=3$$ to $$n=2$$ in hydrogen atom $$\left(R_H=109677 \mathrm{~cm}^{-1}\right)$$.

A
$$15354.8 \mathrm{~cm}^{-1}$$
B
$$82257.8 \mathrm{~cm}^{-1}$$
C
$$30515.4 \mathrm{~cm}^{-1}$$
D
$$41128.5 \mathrm{~cm}^{-1}$$
3
MHT CET 2023 13th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Find the radius of fourth orbit of hydrogen atom if its radius of first orbit is $$\mathrm{R}$$ pm.

A
R pm
B
4 R pm
C
9 R pm
D
16 R pm
4
MHT CET 2023 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following coloured light has the highest energy?

A
Red
B
Blue
C
Yellow
D
Violet
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