Mechanics
Units & Measurement and Dimensions
MCQ (Single Correct Answer)
Motion in a Straight Line
MCQ (Single Correct Answer)
Work, Energy and Power
MCQ (Single Correct Answer)
Center of Mass and Collision
MCQ (Single Correct Answer)
Simple Harmonic Motion
MCQ (Single Correct Answer)
Heat and Thermodynamics
MCQ (Single Correct Answer)
Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
Communication Systems
MCQ (Single Correct Answer)
1
KCET 2020
MCQ (Single Correct Answer)
+1
-0

Two protons are kept at a separation of $$10 \mathrm{~nm}$$. Let $$F_n$$ and $$F_e$$ the nuclear force and the electromagnetic force between them

A
$$F_e=F_n$$
B
$$F_e \gg F_n$$
C
$$F_e \ll F_n$$
D
$$F_e$$ and $$F_n$$ differ only slightly
2
KCET 2020
MCQ (Single Correct Answer)
+1
-0

During a $$\beta^{-}$$-decay

A
an atomic electron is ejected
B
an electron which is already present within the nucleus is ejected
C
a neutron in the nucleus decays emitting an electron
D
a proton in the nucleus decays emitting an electron
3
KCET 2020
MCQ (Single Correct Answer)
+1
-0

A radio-active elements has half-life of 15 years. What is the fraction that will decay in 30 years?

A
0.25
B
0.5
C
0.75
D
0.85
4
KCET 2019
MCQ (Single Correct Answer)
+1
-0

Which one of the following nuclei has shorter mean life?

KCET 2019 Physics - Atoms and Nuclei Question 18 English

A
A
B
B
C
C
D
Same for all
KCET Subjects