List of top Physics Questions

A charge of 6 C is flowing through a point in a circuit for 2 minutes. The current in the circuit is
The resistance of a wire of length 1 m and cross-sectional area 1 mm2 is 1Ω. The specific resistance is
Pick the correct answer from the following two staternents :
(a) Kirchhoff's junction law is based on conservation of charge
(b) Kirchhoff's loop law is based on conservation of energy.
The relation between the potential difference and current is established by the scientist
\(\frac{6J}{2C}=\)
The sum of two resistors is 6Ω and their equivalent resistance when connected in parallel is 1.5Ω. The product of the two resistances is
The sun does not appear red during noon hours. Because
If i1 and i2 are the angle of incidence and angle of emergence respectively, then at the angle of minimum deviation
Pick the correct answer from the following two statements:
(a) Myopia in also called near sightedness.
(b) Hypermetropia is also called far sightedness
When an object is placed at distance of 5 cm from a human eye, the image is formed at distance of
A lens having two spherical surfaces, curved inwards, is called
A convex lens forms a virtual image when the object is placed between focus and optic centre. The size of the image as compared to the object is
On which of the following factors does the focal length of lens depend?
Which among the following materials has higher refractive index?
200 MeV of energy is obtained in the fission of one nucleus of \( ^{235}U \). A reactor is generating 1000 kW power. The rate of nuclear fission in the reactor is:
The particle \( x \) in the following nuclear reaction is:
\[ ^9_4Be + ^4_2He \rightarrow ^{12}_6C + x \]
If \( M \) is the mass of nucleus and \( A \) its atomic mass, then the packing fraction is:
The nuclei \( ^{13}_6C \) and \( ^{14}_7N \) can be described as:
For fission to take place, neutrons must have:
The activity of a sample of radioactive material is \( A_1 \) at time \( t_1 \) and \( A_2 \) at time \( t_2 \) (\( t_2>t_1 \)). Its mean life is \( T \), then:
The value of Lande \( g \)-factor for \( ^2P_{3/2} \) state is:
The spacing between two adjacent longitudinal modes in a plane laser resonator having separation between two mirrors, \( d = 10 \) cm, is:
The separation between adjacent energy levels of a normal multiplet is in the ratio \(3:5\). According to the Lande interval rule, what is the value of \(L\)?
The following transitions lead to the two components of sodium yellow line. The ratio of intensities of the two lines \(b\) and \(a\), \(I_b : I_a\), is:
The beam profile of a laser operating in \(TEM_{00}\) (fundamental mode) is: