1
KCET 2025
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is incorrect with reference of 'Nuclear force'?

A
Nuclear force becomes attractive for nucleon distances larger than 0.8 fm
B
Nuclear force becomes repulsive for nucleon distances less then 0.8 fm
C
Nuclear force is always attractive
D
Potential energy is minimum, if the separation between the nucleons is 0.8 fm
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

In alpha particle scattering experiment, if $v$ is the initial velocity of the particle, then the distance of closest approach is $d$. If the velocity is doubled, then the distance of closest approach becomes

A
$4 d$
B
$2 d$
C
$\frac{d}{2}$
D
$\frac{d}{4}$
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0

The ratio of area of first excited state to ground state of orbit of hydrogen atom is

A
$1: 16$
B
$1: 4$
C
$4: 1$
D
$16: 1$
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0

The ratio of volume of $\mathrm{Al}^{27}$ nucleus to its surface area is (Given, $R_0=1.2 \times 10^{-15} \mathrm{~m}$)

A
$2.1 \times 10^{-15} \mathrm{~m}$
B
$1.3 \times 10^{-15} \mathrm{~m}$
C
$0.22 \times 10^{-15} \mathrm{~m}$
D
$1.2 \times 10^{-15} \mathrm{~m}$
KCET Subjects
EXAM MAP