List of practice Questions

Optically active substance among the following is
Which of the following has the smallest size ?
A convex lens is placed in a medium in which it behaves like a glass plate. The refractive index of the medium, will be
When a large bubble rises from the bottom of a lake to the surface, its radius is doubled. The atmospheric pressure is equal to that of a column of water of height $H$. The depth of the lake is
If the magnetic field is parallel to a surface, then magnetic flux at right angle to the surface, is
In a pure semiconductor crystal, if current flows due to breakage of crystal bonds, then the semiconductor, is called
What can be the angle between $\vec{P}+\vec{Q}$ and $\vec{P}-\vec{Q}$ ?
A beam of light in air enters into the water. Which of the following characteristics of light will not change?
In Lenz?s law, there is a conversion of
The temperature of the sun is measured with
Which of the following is the infrared wavelength?
Conservation of linear momentum is equivalent to
Cold-blooded animals have no fat layer. Cold-blooded animals use their fat for metabolic process during hibernation.
The endocrine gland of insects, which secretes the juvenile hormone, is
Quill feathers at the base of quill wings are called
If the mass of a body is $M$ on the surface of the earth, the mass of the same body on the surface of the moon is
Which of the following has square planar structure ?
What is the correct sequence of bond order ?
First restriction endonuclease enzyme was discovered in
Ethyl alcohol gives ethyl chloride with the help of
In which of the following pairs, the two species are iso - structural ?
Which of the following is an organometallic compound?
The parameter on which the value of the determinant $\Rightarrow \Delta=\begin{vmatrix}1& a & a^2\\ \cos(p-d)x& \cos\ px & \cos(p+d)x\\ \sin(p-d)x& \sin\ px& \sin(p+d)x\\ \end{vmatrix}$ does not depend upon, is
The number of moles of $KMnO_4$ that will be needed to react completely with one mole of ferrous oxalate in acidic medium is
The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6 eV fall on it is 4 eV. The stopping potential in volt is