List of practice Questions

A diatomic gas is heated at constant pressure. What fraction of the heat energy is used to increase the internal energy?

In interference pattern, the energy is

In a biprism experiment by using light of wavelength $ 5000\overset{\text{o}}{\mathop{\text{A}}}\,, $ 5 mm wide fringes are obtained on a screen 1.0 m away from the coherent sources. The separation between the two coherent sources is

Minimata disease was caused due to consumption of

In a stationary wave represented by $Y =2 a \cos kx \sin \omega t$ the intensity at a certain point is maximum when

In the circuit shown the equivalent resistance between $A$ and $B$ is

Each of the properties if sound in List-I primarily depends on one of the quantities in List-II. Select the correct answer (matching List-I with List-II) as per code given below the lists:

One of the causes of the breadth of the spectral lines is

The energy of an X-ray photon of wavelength $1\, ?$ is $\left( h =6.6 \times 10^{34} J - s \right)$

Gravitational field is

According to Maxwells law of distribution of velocities of molecules, the most probable velocity is

According to Bohrs theory of hydrogen atom, for the electron in the $n^{\text {th }}$ allowed orbit the (i) linear momentum is proportional to $1 / n$ (ii) radius is proportional to $n$ (iii) kinetic energy is proportional to $1 / n^2$ (iv) angular momentum is proportional to $n$ Choose the correct option from the codes given below:

Good emitters are good absorbers is a statement concluded from

For which of the following pairs, magnetic moment is same?

Select the incorrect statement, among the following.

Which of the following azeotropic solutions has the boiling point less than boiling point of the constituents $A$ and $B$?

A sample of $0.42 \,mg \,{ }^{233} UF _{6}$ shows an activity of $9.88 \times 10^{4}$ count per second. Its $t_{1 / 2}$ is

The correct set of reagents for the following conversion is

Sodium crystallizes in bcc arrangement with the interfacial separation between the atoms at the edge $53\, pm$. The density of the solid is

Which of the following coordination entities should be expected to absorb light of lowest frequency?

The increasing order of hydrolysis of the following compounds is

The rubber, used for manufacturing tyres is vulcanised with

The neurotransmitter produced at the synapse and neuromuscular junction is

Which of the following is correctly matched ?

Excess of which of the following hormones causes Cushing's syndrome