Arrange the wavelengths of the following radiations in the decreasing order: \( \lambda_{visible}, \lambda_{X-rays}, \lambda_{radiowaves}, \lambda_{\gamma-rays} \)

A pair of adjacent coils has a mutual inductance of 2.0 H. If the current in one coil changes from 0 to 10 A in 0.5 s, the change of the flux linkage with the other coil is

Match List I with List II

LIST I (Devices)	LIST II (Working Priciple)
A. Transformer	I. Wheatstone Bridge
B. Meter Bridge	II. Electromagnetic Induction
C. Moving Coil Galvanometer	III. Mutual Induction
D. A.C Generator	IV. Torque on a current carrying coil

Choose the correct answer from the options given below:

The velocity of light in a medium depends on

In double-slits experiment using light of wavelength 550 nm, the angular width of a fringe formed on a distant screen is 0.2°, What is the spacing between the two slits?

A bar magnet of magnetic moment \(M_1\) is axially cut into two equal parts. If these two pieces are arranged perpendicular to each other in the shape of L, the resultant magnetic moment becomes \(M_2\), then the value of \(\frac{ M _1}{ M _2}\) is :

Identify X in the following nuclear reaction:
\( {}_{6}^{12}C + {}_{1}^{1}H \rightarrow X \)

Out of the following, which one is not correct?

The structures present in human sperm are-
(A). Nucleus
(B). Zona pellucida
(C). Acrosome
(D). Mitochondria
Choose the correct answer from the options given below:

Value of \(\mu(20)+\sigma(20)\) is (where \(\mu(n)\) is the Mobius function and \(o(n)\) is the sum of all positive divisors of \(n\) )

A proton accelerated through a potential difference of V volts has a de-Broglie wavelength \( \lambda \) associated with it. In order to get the same wavelength with an \( \alpha \)-particle, the required accelerating potential is

What kind of IUD is Lippes loop?
A. Non-medicated
B. Copper releasing
C. Zinc releasing
D. Hormone releasing E. Medicated IUDs
Choose the correct answer from the options given below:

Read the passage carefully and answer the questions
Many halogen containing organic compounds are present in nature and some of them are clinically useful. These classes of organic compounds find a wide range of applications in our daily life as well as in industries. Many of the polyhalogen compounds are useful too in agriculture. However, some of these compounds cannot be easily decomposed and are thus considered to be environmental hazards. These halo compounds are prepared via different synthetic routes where a variety of organic compounds can be used as substrates such as amines, hydrocarbons etc. They are used as solvents for relatively non-polar compounds. These compounds exhibit substitution and elimination reactions, in addition to their reactions with different metals, which leads to the formation of a versatile starting material for others organic compounds.
The reaction of aryl halide with sodium and dry ether is known as