List of top Questions asked in Bihar Board X - 2023

Which of the following gases is used in welding?
The resistance of the filament of an electric bulb is 1200 ohms. How much electric current will the bulb draw from an electric source of 220 volts?
The electromotive force of a cell is 1.5 V. The work done on passing a charge of 1 C will be:
A white ray is incident obliquely on a glass slab. Which of the following will occur with the first refraction?
Gibberellin is:
Wilting of leaves is due to which phytohormone?
The radius of curvature of a concave mirror of focal length 20 cm is:
In which device does the split ring act as a commutator?
In a domestic electric circuit, the colour of neutral wire is:
In plants, xylem is responsible for:
The capacity to bend rays of light is called:
The image obtained by a concave lens is:
Androgen is secreted by the:
Style is part of:
Latex is found in:
Duodenum is a part of:
In human beings, nasal cavity, larynx, trachea, and lungs combine to form:
Most of the refraction of the light rays entering the eye occurs at:
Which of the following is the unit of power of lens?
What type of lens is found in the human eye?
Which mirror is used as a shaving mirror?
If the image of an object formed by a concave mirror is virtual, erect, and larger than the object, then where should be the location of the object?
Which of the following lenses is used to remove short-sightedness?
Which of the following acids is found in vinegar?
The functional group \textbf{Functional group} \(\>\)CO is called: