List of top Physics Questions asked in Tripura JEE

Two plane mirrors kept at some angle with each other produce 5 images of any object kept between them. If the angle is decreased by 30°, then the number of images will be
In a Young’s double slit experiment, light of wavelength 620 nm is used with slit separation 0.3 mm and width of fringe 1.3 mm. The distance of the screen from source will be
If two vectors are $ \vec{a} = \hat{i} + \hat{j} $ and $ \vec{b} = \hat{j} + \hat{k} $, then the value of $ \vec{a} \times \vec{b} $ will be
At 300 K, both electron and hole density in an intrinsic silicon crystal is $ 15 \times 10^{15} \, \text{m}^{-3} $. When it is doped with indium, the hole density becomes $ 4.5 \times 10^{22} \, \text{m}^{-3} $. The extrinsic electron density will be
The work function of a photosensitive metal is 0.5 eV. If photons of energy 1 eV and 2.5 eV are incident on this metal separately, then the ratio of maximum kinetic energies of ejected electrons will be
The magnetic moment of a magnetized wire is $ M $. Now it is bent to form a section of a circle which subtends 60° on its center. Magnetic moment of the bend-shaped wire is

The equivalent capacitance of the circuit given between A and B is

In the wave equation $ y = 3 \cos \pi (100t - x) \, \text{cm}$, the wavelength is
Young’s modulus of steel is $ 2 \times 10^{11} \, \text{N/m}^2 $ and strain at elastic limit is 0.15. The value of limiting stress will be
The distance covered by a particle moving in a straight line path at time $ t $ (in seconds) is given by $ s = (t^3 - 6t^2 + 3t + 4) \, \text{m}$. The velocity of the particle when its acceleration is zero, will be

The corresponding logic gate for the given truth table is

The value of current $ I $ in the adjoining circuit will be


An ideal monatomic gas follows the ABCDA path in the adjoining P-V diagram. The work done by the gas will be

1 mole gas at standard pressure and at 27°C temperature is heated such that its volume and pressure both become doubled. The final temperature will be
Both sides of a convex lens have radius of curvature 40 cm and the refractive index of its glass is 1.5. The focal length of the lens is
If the refractive index of the material of an equilateral prism is $ \sqrt{3} $, the minimum angle of deviation will be
The radius of curvature of a convex mirror is 40 cm and the object size is double that of image size. The image distance will be
Material in earth and moon is same but radius of earth is 10 times that of moon and acceleration due to gravity in earth is 6.4 times that in moon. Then the ratio of escape velocity in earth and in moon will be
Two springs of spring constants $ k_1 $ and $ k_2 $ are joined together in series combination. The spring constant of the combination is
A uniform meter-scale is bent at the middle to form a perfect rectangle. Now the distance of the centre of gravity of this rectangle from middle of the scale will be
The weights of a hollow metallic sphere in air and when submerged in water are 264 gm-wt and 221 gm-wt respectively. If specific gravity of the metal is 8.8, then volume of the hollow portion is


In the adjoining figure, if the pulley and the inclined plane are frictionless, then upward acceleration of the mass $ m $ will be

100 N horizontal force is applied on a body of mass 10 kg kept on a rough horizontal surface. If coefficient of friction between the surface and the body is 0.5, then the acceleration produced in the body will be
Two projectiles are thrown at angles $ \theta $ and $ (90^\circ - \theta) $ with same initial velocity and range $ R $. If maximum height attained by them are $ H_1 $ and $ H_2 $ respectively, then
The position of a particle at time $ t $ is given by $ \vec{r} = \vec{r_0}(1 + at) $, where $ \vec{r_0} $ and $ a $ are two constants. When will the particle come back to its starting position?