List of practice Questions

The graph for photoelectric effect, which is a straight line will be between
The functional unit of mitochondria is
The general molecular formula of aldehydes and ketones is :
The given figure represents head region of cockroach. In which one of the options all the four parts $A, B, C$, and $D$ are labelled correctly?
The force per unit charge is known as
The frequency of a particle executing simple harmonic motion is 10 hertz. The frequency of variation of its kinetic energy is
The female external genitalia include (i) ovary (ii) mammary gland (iii) mons pubis (iv) clitoris (v) labia majora
The female sex organ in Riccia and Funaria is
The figure given below shows the head region of cockroach. Identify A to F.
The figure given below shows three stages in the cardiac cycle.
Which of the following sequences is correct regarding this?
The expression "Gynoecium is apocarpous" implies that the
The external and internal radius of a hollow cylinder are measured to be $(4.23 \,\pm \,0.01)\, cm$ and $(3.89 \,\pm \, 0.01) \,cm$, respectively. The thickness of the wall of the cylinder is
The extinct humans who lived $1,00,000$ to $40,000$ years ago, in East and Central Asia, used hides to protect their bodies and had brain capacity of $1400 \,c.c.$ were
The exotic species, which when introduced in India became notorious weed, is
The expanded form of $DDT$ is
The exponential growth can be expressed as W = We. What is 'r' in the expression ?
The expression for the induced emf contains a negative sign $\left( \xi=-\frac{d\phi}{dt}\right)$. The significance of the negative sign is given by the statement
The escape velocity of a body from the earth depends on (i) the mass of the body. (ii) the location from where it is projected. (iii) the direction of projection. (iv) the height of the location from where the body is launched.
The essential conditions for observing Fresnel class of diffraction is
The example of heteropolar sol. is
The excluded volume per molecule of a gas is ________ times the actual volume of the gas molecule
The escape velocity of a body depends upon its mass as
The energy yield as a result of total oxidation of one glucose molecule during cellular respiration is to convert
The enthalpies of combustion of carbon and carbon monoxide are -393.5 and -283 $kJ mol^{-1}$ respectively. The enthalpy of formation of carbon monoxide per mole is
The electrostatic potential inside a charged spherical ball is given by $\phi = ar^2 + b$ where r is the distance from the centre a, b are constants. Then the charge density inside the ball is