Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
What is the least possible error in using a rule graduated in centimeters?
0.1cm
0.5cm
1.0cm
2.0cm
Correct answer is A
No explanation has been provided for this answer.
The kinetic theory of photoelectron liberated from a metallic surface depends on the
intensity of the incident radiation
time duration of the incident radiation
temperature of the incident radiation
frequency of the incident radiation
Correct answer is D
No explanation has been provided for this answer.
\(^{222}_{82}Z\)
\(^{222}_{88}Z\)
\(^{226}_{86}Z\)
\(^{226}_{80}Z\)
Correct answer is B
\(^{226}_{88}X\) \(\to\) \((^{0}_{-1}e)\) + \(^{4}_{2}\alpha\) + \(^{b}_{a}X\)
a + 2 + (-2) = 88 a \(\Rightarrow\) a = 88
b + 4 + 0 = 266 b \(\Rightarrow\) b = 222
i and ii
i and iv
ii and iii
ii and iv
Correct answer is B
No explanation has been provided for this answer.
\(\alpha\), X, and \( \beta\)
\(\alpha\), \(\beta\) and \(\gamma\)-rays
X, \(\alpha\), \(\gamma\)-ray
\(\alpha\), \( \beta\) and X-rays
Correct answer is B
No explanation has been provided for this answer.