The position of the image obtained by a convex lens when an object is kept between F1 and 2F1 (F: principal focus of the convex lens)

The power plant that does not use turbine to generate electricity is

An electric lamp whose resistance is 20 Ω and a conductor of 4 Ω resistance are connected in series to a 6V battery as shown in figure. Then the total current flowing through the circuit is

In Fleming’s right hand rule middle finger indicates direction of the

Observe the following table :

In which material medium speed of light is very high?

A rectangular coil of copper wire is rotated in a magnetic field. The direction of induced current changes ones in each

A major component of biogas is

One of the properties of concave lens is, it

An electric bulb is connected to a 220V generator. If the current flowing in the bulb is 0.50A. The power of the bulb is

The function of ammeter in an electric circuit is, it

As the electrical resistivity of a substance increases

The phenomenon of bending of light as it passes from one transparent medium to another is

Which of the following is NOT a property of magnetic lines?

When a copper is exposed to air for a long time it acquires a green coat. Because it reacts with

The number of single bonds and double bonds present in a structure of benzene molecule respectively

The gas liberated when sodium carbonate reacts with dilute hydrochloric acid is

The common molecular formula for both cyclopropane and propene

The substance that changes the colour of red litmus paper into blue colour

The amphoteric oxide among the following is

An alloy that made up of copper and tin is

When a carbon dioxide reacts with calcium hydroxide salts and water are produced. Then the nature of carbon dioxide is

“The three elements were written in the order of increasing atomic mass the atomic mass of middle element was roughly the average of the atomic masses of other two elements.” This law was stated by

Carbon has the ability to form bonds with other atoms of carbon giving rise to large molecules. This unique property of carbon is

The group of compounds which are in homologous series

The number of periods and groups in the modern periodic table respectively are

The main function of abscisic acid (hormone) in plants is to

A common part among the following that is found in reproductive system of both in flowering plants and humans is

Which of the following is an inherited trait?

The blood vessels that carry blood from all parts of the human body to the heart are

The plants can get rid of excess of water by this process

The correct path of urine flow in the human excretory system

Which of the following is the bio-diversity hot spots ?

The growth of pollen tubes towards ovules in the flower of plants

A group that contains only bio-degradable substances among the following is

The part of human brain that controls the involuntary actions like salivation and blood pressure is

Which of the following is not a part of human female reproductive system?

The main purpose of constructing water harvesting structures is to

A pure tall pea plant (TT) is crossed with a short pea plant (tt). The ratio of pure tall pea plant to the short pea plants produced in F2 generation is:

The wings of bat and pigeon are the examples of