List of practice Questions

According to the Hooke's law, the force required to change the length of a wire by 'l' is proportional to :
According to Lewis, the ligands are
According to Newtons formula, the speed of sound in air at $STP$ is (Take the mass of $1$ mole of air is $29 \times 10^{-3}\, kg$)
According to second postulate of Bohr model, the angular momentum $(L_n)$ of $n^{th}$ possible orbit of hydrogen atom is given by
According to the first law of thermodynamics, $\Delta U = q + w$. In special cases the statement can be expressed in different ways. Which of the following is not a correct expression?
According to Classical theory, the Rutherford model of atom is
According to Hooke?? law of elasticity, if stress is increased, the ratio of stress to strain
According to Laplace correction, the propagation of sound in gas takes place under
According to Lewis concept of acids and bases,ethers are
According to Bohr hypothesis, discrete quantity is
According to Bohr?? theory, the wave number of last line of Balmer series is $(R = 1.1 \times 10^7 \,m^{-1})$
Accessory photosynthetic pigments in most green plants are
According to Allen's Rule, the mammals from colder climates have
According to binomial nomenclature, scientific name of an organism consists of
Accelerated eutrophication occurs due to
Accessory excretory organs of man are
Absorption of water from soil by seeds increases the _______ thus helping seedlings to come out of soil.
Abdominal muscles and internal intercostal muscles contract actively during
Abiogenesis theory of origin supports
About $6\%$ of the power of a $100\, W$ light bulb is converted to visible radiation. The average intensity of visible radiation at a distance of $8\, m$ is (Assume that the radiation is emitted isotropically and neglect reflection.
Absence of circulatory system in Hydra is compensated by
A120 V, 60Hz a.c. power is connected $800\Omega$ non-inductive resistance and unknown capcitance in series. The voltage drop across the resistance is found to be 102V, then voltage drop across eapacitor is
ABC is a triangle and AD is the median. If the coordinates of A are ( 4, 7, - 8)and the coordinates of centroid of the triangle ABC are (1, 1, 1), what are the coordinates of D?
ABCD is a convex quadrilateral. 3, 4, 5 and 6 points are marked on the sides AB, BC, CD and DA respectively . The number of triangles with vertices on different sides is
A wire of length $L$, radius $r$ when stretched with a force $F$ changes in length by $l$. What will be the change in the length of a wire of same material having length $2L$, radius $2r$ and stretched by a force $2F$ ?