List of practice Questions

Principal quantum number (n) is represented with
The nature of non-metal oxide is
An antacid is
When Na2CO3 reacts with an acid, which of the following gases is evolved?
Which of the following properties is used in the olfactory indicator?
What happens when litmus paper test is performed with an acid?
The device used to measure the potential difference or electromotive force is
Pick the false statement on the metallic conductors.
Which of the following materials obeys the Ohm's law?
An amount of charge passing through any cross-section of the conductor in 1 second is called
The human eye functions on the principle of sensation of
The distance between the focal point and the optic centre gives the
A lens is made up of
If i and r are the angle of incidence and angle of refraction, then the equation for the Snell's law is
If x and y are the temperatures of the hot and cold water samples respectively and z is the final temperature of their mixture, then
The magnetic flux passing through a unit area perpendicular to the field is called
The development of electromagnetism lead to the invention of
The SI units of magnetic flux and magnetic flux density respectively are
For the children below the age of 10 years, the value of least distance of distinct vision is about
Dioptre is the unit of
A person cannot see the objects placed between near point and the point of least distance of distinct vision. His defect of vision can be corrected by using
For a healthy eye, the accommodation of eye lens will be in the range of
The defect of vision in which the people cannot see the objects beyond far point is called
The materials which are useful in making of diodes, transistors and integrated chips (ICs) etc. are
A current of 1·5 A passes through a conductor of resistance 20Ω. The potential difference across it is