1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The binding energy per nucleon for $$\mathrm{C}^{12}$$ is $$7.68 \mathrm{~MeV}$$ and that for $$\mathrm{C}^{13}$$ is $$7.47 \mathrm{~MeV}$$. The energy required to remove a neutron from $$\mathrm{C}^{13}$$ is

A
$$7.92 \times 10^{-13} \mathrm{~MeV}$$
B
$$4.95 \times 10^{-13} \mathrm{eV}$$
C
$$7.92 \times 10^{-13} \mathrm{~J}$$
D
$$7.92 \times 10^{-19} \mathrm{~J}$$
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The distance of closest approach when an alpha particle of kinetic energy $$6.5 \mathrm{~MeV}$$ strikes a nucleus of atomic number 50 is

A
0.221 fm
B
1.101 fm
C
0.0221 fm
D
4.42 fm
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

A scooter moves with a speed of $$7 \mathrm{~ms}^{-1}$$, on a straight road and is stopped by applying the brakes. Before stopping, the scooter travels $$10 \mathrm{~m}$$. If the weight of the scooter is $$\mathrm{W}$$, then the total resistance to the motion of the scooter will be

A
$$\frac{1}{2} W$$
B
$$\frac{1}{4} W$$
C
4W
D
2W
4
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment light of wavelength $$500 \mathrm{~nm}$$ is used to form interference pattern. A uniform glass plate of refractive index 1.5 and thickness $$0.1 \mathrm{~mm}$$ is introduced in the path of one of the interfering beams. The number of fringes that will shift due to this is

A
100
B
400
C
300
D
200
EXAM MAP