List of top Science Questions

A person suffering from short-sightedness can see up to 100 meters. Calculate the nature and the focal length of the lens in order to correct this defect so that he can see objects at infinity hence correct vision. Also, draw the ray diagram.
What is Ohm's law? Explain by drawing the associated circuit diagram. Also discuss the terms on which the resistance of an electrical conductor depends.
The autotrophic mode of nutrition requires:
The alkene in the following is:
Useful substance in making water bacteria free is:
In which of the following plants did Mendel perform his experiments on inheritance?
A solution turns red litmus into blue. The possible pH value of this solution is:
The reactions in which new compounds are formed by exchange of ions, are called:
The bond present in chlorine molecules is:
The function of xylem in plants is:
The alkene in the following is:
The sun appears whitish:
Which of the following metals produces hydrogen gas with cold water?
Which of the following metals produces hydrogen gas with cold water?
On which of the following does the resistance of an electrical conductor not depend?
In which combination the four resistors be connected to have minimum resultant resistance?
One needs the help of which of the following rules to know the direction of the magnetic field produced due to a current carrying conductor?
When a beam of white light falls on the surface of a triangular prism of glass, it splits, after emerging out from the prism, into various colours with different deviations. Which colour has maximum deviation?
The unit of the power of the lens is:
To have a real and enlarged image of an object by a concave mirror, the position of the object should be:
Measure of mass of water vapour for a given mass of dry air (in g/kg) is referred to as
Arrange the coal types from lowest to highest rank?
(A) Brown coal
(B) Sub bituminous
(C) Hard coal
(D) Soft coal
Choose the correct answer from the options given below:
Identify the correct classification of resources based on supply.
Which macro-nuutrient intake during training session is advisable to be concentrated upon with highest percentage in daily diet.
Which of the following statements are correct with regard to daily energy requirements?
A. Proteins are major source of energy
B. For every kg. of body weight 1.3 calories of energy is required every 24 hrs.
C. 25% of fat is required in the diet.
D. Approximately 60% of energy shall come from carbohydrate
E. The consumption of excess fat, prior to exercise increase the performance.
Choose the correct answer from the options given below :