Question Paper (Section wise)

What is the output Y in the following circuit when all the three inputs A, B, C are first 0 and then 1?

A solid sphere of mass m and radius R is rotating about its diameter. A solid cylinder of the same mass and same radius is also rotating about its geometrical axis with an angular speed twice that of the sphere the ratio of their kinetic energies of rotation (E_sphere / E_cylinder) will be

The temperature inside a refrigerator is t2 °C and the room temperature is t1 °C. The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be

A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the loop is B. it is then bent into a circular coil of n turns. The magnetic field at the centre of this coil of n turns will be

The interference pattern is obtained with two coherent light source of intensity ratio n. In the interference pattern, the ratio   will be

Compound A, C₈ H₁₀ O, is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell.

A and Y are respectively

Which of the following statements is not true for halogens?

The type of isomerism shown by the complex [CoCl₂ (en)₂] is

Which of the following is correct with respect to –I effect of the substituents? (R=alkyl)

Nitration of aniline in strong acidic medium also gives m-nitroaniline because:

Select the mismatch:

Good vision depends on adequate intake of carotene rich food.

Select the best option from the following statements.

a.       Vitamin A derivatives are formed from carotene.

b.       The photopigments are embedded in the membrane discs of the inner segment.

c.       Retinal is a derivative of Vitamin A.

d.       Retinal is a light absorbing part of all the visual photopigments.

Match the following sexually transmitted diseases (Column-I) with their causative agent (Column-II) and select the correct option.

The function of copper ions in copper releasing IUDs is:

Presence of plants arranged into well-defined vertical layers depending on their height can be seen best in:

Which of the following statements is correct?

Which one from those given below is the period for Mendel's hybridisation experiments?

Viroids differ from viruses in having:

Double fertilisation is exhibited by:

Spliceosomes are not found in cells of: