A parallel beam of light of wave length 500 nm in incident normally on a single slit of width \( 10^{-6} \, \text{m} \). The light is focused by a convex lens on a screen placed in focal plane.

The phenomenon of spliting of white light into the constituent colours on passing through a prism is known as-

The wave theory of light can not explain the phenomenon of

What is the force experienced by an electron moving with velocity of \(0.5 c\) in a magnetic field \(\vec{B}\) of \(2 T\) ? The angle between the velocity vector and \(\vec{B}\) is \(90^{\circ}\)
( \(c\) is the velocity of light, \(e=1.6 \times 10^{-19} C\) )

A plane electromagnetic wave travels in vacuum along z-direction. What will be the directions of its electric field (\(\vec{E}\)) and magnetic field (\(\vec{B}\)) vectors?

Match List-I with List-II (here symbols have their usual meanings)

List-I (Physical Quantity / Law)	List-II (Formula)
(A) Snell's law	(I) \( t/\mu \)
(B) Apparent Shift	(II) \( c/v \)
(C) Refractive Index	(III) \(\frac{\mu_2}{\mu_1}\)
(D) Apparent depth	(IV) \( t(1 - \frac{1}{\mu}) \)

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A solenoid has 100 turns and is of length 20 cm. It carries a current of 5A. The magnetic field in the middle of the solenoid is:

Arrange the following trophic levels of the terrestrial ecosystem in correct order?
(A) Tertiary consumers
(B) Secondary consumers
(C) Producers
(D) Primary consumers
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Genes which code for a pair of contrasting traits are

Read the passage carefully and answer the Questions
Aldehydes, carboxylic acids and ketones are widespread in the animal and plant kingdoms.
They play a pivotal role in various biochemical processes of life. Their presence in nature adds fragrance and flavor. These compounds are widely used in food products, pharmaceuticals, paints, resins and other important product industries. These compounds are prepared by various laboratory methods, which mainly include oxidation, formylation, acylation and reduction. Due to the polar nature of the carbonyl group in aldehydes and ketones, they can exhibit different reactions like nucleophilic addition. They do exhibit redox and various condensation reactions which lead to the formation of various important compounds. On the other hand, the carboxylic acids are mainly prepared by oxidation and hydrolysis of different compounds. The carboxylic acid consists of a carbonyl group and the hydroxy group (attached to the carbonyl carbon atom). This makes it possible for the carboxylic acid to participate in various chemical reactions which involve cleavage of the C-OH bond and the O_H bond along with the reactions involving the complete -COOH group.
Identify the final product (X) of the chemical reaction obtained from the following transformation :

Different stages of oogenesis are given below. Arrange them in the sequence of their occurrence
A. Completion of first meiotic division of primary oocyte
B. Release of ovum from the ovary.
C. Primary oocyte in the primary follicle formation.
D. Graafian follicle

Select the statements which hold true for immune system:
A. Innate immunity or nonspecific immunity is present at the time of birth.
B. Acquired immunity is never pathogen specific
C. Cytokine barriers are a part of innate immunity
D. Rheumatoid arthritis is an auto-immune disease
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Match List - I with List - II.

List - I	List - II
(A) \(Ni ^{2+}\)	(I) Pink
(B) \(Cu ^{2+}\)	(II) Purple
(C) \(Mn ^{2+}\)	(III) Green
(D) \(Ti ^{3+}\)	(IV) Blue

Choose the correct answer from the options given below :