List of top Science Questions

State the right-hand thumb rule for finding the direction of magnetic field associated with a current carrying conductor. Show the magnetic field lines due to a straight current carrying conductor.
Which one of the following is the main substance responsible for ozone layer depletion?
Pyruvate is oxidized in which part of the cell in presence of oxygen?
Why did Mendel conduct his experiment?
Which one of the following make up the food chain?
Write a short note on hypermetropia and its correction.
Give the formula for the focal length of a convex mirror. Give any two uses of the convex mirror.
Explain the phenomenon of refraction of light.
Alkyne among the following is:
Xylem in the plants is responsible for:
Which atom has the property of catenation?
Autotrophic nutrition requires:
Unit of kidney, which takes part in the process of excretion is:
.......... is used in the form of fuel and medicine.
Following reaction:
\(\text{CaCO}_3 (s) \xrightarrow{\text{heat}} \text{CaO} (s) + \text{CO}_2 (g)\)
is an example of:
What do you mean by endocrine glands? Describe the functions of hormones secreted by any four endocrine glands in humans.
Which of the following metals is not in solid state at room temperature?
Define ecosystem and describe its various biotic components with examples.
Reaction between acid and base gives:
A 440 W, 220 V is marked on an electric bulb. The resistance of the filament of the bulb will be:
A freely suspended current carrying solenoid always rests in:
Write short notes on the following:
Write balanced equations for the following reactions:
Reproductive organ of flower is:
Which one of the following is formed inside the anther?