List of top Science Questions asked in Bihar Board Class X Exam

Which of the following has the lowest refractive index?
What will be the nature of the image of an object, if magnification of the image is negative?
How many laws are there for reflection of light?
A ray of light is incident perpendicular to a plane mirror. The angle of reflection will be:
The far point for normal vision is:
A simple prism is bounded by how many surfaces?
The structural and functional unit of kidney is called:
A split ring is used in:
Metallic conduction is based on the motion of which particle in material?
The upper part of a box-type solar cooker has a glass cover. The reason for this is:
A resistor of power \(P_1\) at voltage \(V_1\) is connected in series with another resistor of power \(P_2\) at voltage \(V_2\). The equivalent resistance will be:
The frequency of alternating current in household electric circuits is:
What should be the minimum speed of wind in a wind electric generator?
Which is used in a solar cell?
The molecular formula of sodium phosphate is:
The valency of all elements in a group of the periodic table is:
What is the number of elements in the third group of the periodic table?
The electronic configuration of an element is 2, 8, 7. What is the atomic number of the element?
Duralumin is an alloy of which metal?
Which of the following is used as wine?
Hydrilla is found:
Systolic blood pressure of a healthy person is:
In fish, respiration takes place through:
An example of a bisexual organism is:
In which of the following organisms does asexual reproduction occur through budding?