Arrange the following radiations in the decreasing order of their energy
(A) Microwaves
(B) \( \gamma \)- rays
(C) AM radio waves (D) Infrared waves
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Kinetic energies of four particles a, b, c, d of equal masses are given below. Arrange them in order of their decreasing de-Broglie wavelengths.
(A) \((KE)_a = 1 \text{ eV}\)
(B) \((KE)_b = 0.01 \text{ eV}\)
(C) \((KE)_c = 4 \text{ eV}\)
(D) \((KE)_d = 16 \text{ eV}\)
Choose the correct answer from the options given below:

Identify the correct statement(s) among the following:
(A) If three electrical cells each of emf, E and internal resistance r are connected in series to a resistance R, the current drawn from them is 3E/(R+3r).
(B) If these three cells are connected in parallel combination, across resistance R then the current drawn will be E/(3R+r).
(C) If the two cells are connected in series and then one in parallel which are then connected across resistance R, then the current drawn will be 2E/(2R+2r).
(D) In a mixed grouping of cells, current will be maximum when total external resistance is equal to total equivalent internal resistance.
Choose the correct answer from the options given below :

Which of the following statements are correct?
(A) The current under reverse bias is essentially voltage dependent on a critical reverse bias voltage.
(B) The diode gets destroyed due to overheating if the forward or reverse current exceeds the rated value.
(C) In forward bias measurement, we use a milliammeter since the expected current is large, while a microammeter is used in reverse bias to measure the current.
(D) The drift current is of the order of a few \( \mu \)A
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A ray of light from air passes through an equilateral triangular glass prism and undergoes minimum deviation when the angle of incidence is 3/4 of the angle of prism. The speed of light in the prism is :

A convex lens of glass (n = 1.5) has a focal length 18 cm in air. When it is immersed in water (n = 4/3) the focal length increases to:

Four equal charges \(Q\) are placed at the four corners of a square of side 'a'. Work done in removing a charge \(-Q\) from its centre to infinity is :

Read the paragraph given below and answer the question.
Sutton and Boveri argued that the pairing and separation of a pair of chromosomes would lead to the segregation of a pair of factors they carried. Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritance.The scientist who noted that 'The behaviour of chromosomes was parallel to the behaviour of gene' were:

In the given figure, feasible region represented by the constraints \(4 x+y \geq 80, x+5 y \geq 115,3 x+2 y \leq 150, x, y \geq 0\) is

Chemically, which of the following hormones is a polypeptide?

Silicon can be doped to get an n-type semiconductor by using :
(A) Arsenic (As),
(B) Phosphorus (P),
(C) Boron (B),
(D) Antimony (Sb).

Resolving power of a telescope can be increased by increasing:

The demand function P for maximising a profit monopolist is given by \(P = 274 -\) \(x^2\), while the marginal cost is \(4+3x\) for \(x\) units of commodity. The consumer surplus is