PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 2

EASY

12th CBSE

IMPORTANT

Earn 100

Calculate the mass equivalent of $1 Amu$ .

Important Questions on Nuclei

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12th CBSE

IMPORTANT

PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 3

Express

1

electron volt in kilowatt hour.

EASY

12th CBSE

IMPORTANT

PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 4

Find the effective mass of a photon of energy

5 eV

. Take:

c = 3 \times 10^{8} m / s

.

EASY

12th CBSE

IMPORTANT

PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 5

Find the effective mass of a photon if the frequency of the radiation is

6 \times 10^{14} Hz

.

MEDIUM

12th CBSE

IMPORTANT

PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 6

Find the effective mass of a photon if the wavelength of the radiation is

3000 A^{0}

.

EASY

12th CBSE

IMPORTANT

PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 7

What is the order of energy, in

eV

for a photon of visible light? Take:

h = 6.626 \times 10^{- 34} Js, c = 3 \times 10^{8} m / s

,

e = 1.6 \times 10^{- 19} C

.

MEDIUM

12th CBSE

IMPORTANT

PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 8

Calculate the nuclear radii of

{}_{8}^{140}{Ba}

and

{}_{8}^{17}O

. Given

R_{0} = 1.5 fm .

EASY

12th CBSE

IMPORTANT

PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 9

The nuclear radius of

{Pb}^{208}

is

8.874 fm .

What will be the nuclear radius of

{Ca}^{44} ?

MEDIUM

12th CBSE

IMPORTANT

PHYSICS A Reference Book for Class 12 Volume 2>Chapter 5 - Nuclei>Problems For Practice>Q 10

A nucleus with

A = 235

splits into two nuclei whose mass numbers are in the ratio

2 : 1

. If

R_{0} = 1.4 fm

, find the radii of the new nuclei.