Practice authentic previous years' questions for Bihar Special, History, Science, Geography, Polity, and Economy with comprehensive solutions.
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The radiations used in the treatment of muscle ache are:
The total equivalent resistance of a circuit having two parallel resistors is $1.403\text{ k}\Omega$. If one of the resistors is $2.0\text{ k}\Omega$, then the resistance of the other resistor will be:
On heating, the electrical resistance of an intrinsic semiconductor:
Faraday constant:
'Light-year' is a unit of:
Which of the following does NOT change when light travels from one medium to another?
The velocity of electromagnetic waves in a vacuum is:
The first person who set foot on the Moon was:
The number of neutrons in the nucleus of plutonium nuclide $^{242}_{94}\text{Pu}$ is:
The highest viscosity among the following is of:
Milk is a poor source of:
The chemical breath test conducted by police to check a drunken driver utilizes which one of the following on the filter paper/crystals?
Glucose is converted to ethyl alcohol during fermentation by the action of the enzyme:
Limewater is turned milky by:
The incomplete burning of hydrocarbon fuels like petrol and diesel produces:
If the pH of a solution changes from 3 to 6, the $\text{H}^+$ ion concentration will:
A mixture of sand and naphthalene can be separated by:
The numbers of sigma ($\sigma$) and pi ($\pi$) bonds in a molecule of benzene are:
The chemical elements present in urea are:
The poorest conductor of heat among the following metals is:
The vitamin which is essential and effective in blood clotting is:
The primary female sex hormone is:
The Nobel Prize in Physiology or Medicine for developing pharmacological treatments for Parkinson's disease was awarded to:
The malfunctioning of the thyroid gland is primarily caused by the deficiency of:
The region of the human tongue most sensitive to the perception of bitterness is the: