List of practice Questions

Camouflage is shown by
Articular cartilage is
Blinking of eyes is performed by
Chordotonal or hearing organs occur in Cockroach over
A bipolar neuron has
An epithelium having different ploidy in different layers is
An example of deuse regular connective tissue is
Plasma cells of connective tissue
A planet moves around the sun (mass = $M_{s}$ ) in an elliptical orbit such that its minimum and maximum distance from the sun are $r$ and $R$ respectively. The period of revolution of this planet around the sun is
A bimetallic strip is made of aluminium and steel $\left(\alpha_{Al} > \alpha_{steel}\right)$. On heating, the strip will
A binary star system consists of two stars of masses $M_1\,and\,M_2$ revolving in circular orbits of radii $R_1\,and\,R_2$ respectively. If the respective time periods are $T_1\,and\,T_2$
A biconvex lens has a focal length $2/3$ times the radius of curvature of either surface. The refractive index of the lens material is
Collenchyma is
Sequence of cellular layers from the periphery towards the cortex in an old dicot stem is
Bulliform,large sized ,vacuolate motor cells occur
The term starch sheath is used for endodermis of
A beam of light passes through layers of following different substances each 10 cm thick normally. In which substance does the beam take more time to pass through
The fringe width in a Youngs double slit interference pattern is $2.4 \times 10^{-4}\, m$, when red light of wavelength $6400 ?$ is used. How much will it change, if blue light of wavelength $4000 ?$ is used?
The idea of secondary wavelets for the propagation of a wave was first given by
A beam of light consisting of two wavelengths, $650\,nm$ and $520 \,nm$ is used to obtain interference fringes in a Young?s double-slit experiment. What is the least distance from the central maximum where the bright fringes due to both the wavelengths coincide?
A beam of $\alpha$ particles having specific charge $2.5\times10^7\,C\,kg^{-1}$ moves with a speed of $2\times10^5\,ms^{-1}$ in a magnetic field of $0.05\, T$. The radius of the circular path described by the $\alpha$-particle is
A battery of e.m.f. 12V and internal resistance $2\Omega$ is connected in series with a tangent galvanometer of resistance $4\Omega$. The deflection is $60^\circ$ when the plane of the coil is along the magnetic meridian. To get a deflection of $30^\circ$, the resistance to be connected in series with the tangent galvanometer is :
A current $I$ flows along the length of an infinitely long, straight, thin walled pipe. Then
A batsman scores runs in 10 innings 38, 70, 48, 34, 42, 55, 63, 46, 54 and 44, then the mean deviation is
The feasible region for an LPP is shown shaded in the figure. Let Z = 3 x - 4 y be the objective function. Minimum of Z occurs at