Student Questions

What is the law of reflection? A.The law of reflection states that the incoming light must reflect the flat surface. B.The law of reflection states that the incoming light bends after reflection. C.The law of reflection states that the angle of incidence (incoming angle of light) is equal to the angle of reflection D.The law of reflection states that the angle of incidence (incoming angle of light) is equal to two times the angle of reflection (outgoing angle of light)

How does hot air and cold air interact when they meet together? A.Hot air rises and cold air settles down B.Cold air rises and hot air settles down C.Hot air moves eastward D.None of the above

A(n) _______ is a blood vessel that carries blood away from the heart. A(n) _______ is a blood vessel that carries blood to the heart. A.artery, vein B.vein, artery C.artery, antiartery D.vein, devein

Which of the following cannot be used to make wires? A.Copper B.Aluminium C.Silver D.Iron

What will happen if you increase the current in an electromagnet? A.Its magnetic power will decrease. B.Its magnetic power will increase. C.Its magnetic power will be the same. D.Nothing will happen to the magnetic power.

Which of the followings are female reproductive parts of a flower? A.Style , filament and anther B.Filament and anther C.Filament, anther, ovary D.Style,stigma, ovary

In an experiment, student tried to add chalkpowder, sugar and oxygen to water.He observed some dissolved and some not. Arrange these substance in descending order of their solubility in water. A.Sugar,oxygen,chalk powder B.Oxygen,sugar ,chalkpowder C.Chalkpowder, sugar, oxygen D.Chalkpowder,oxygen,sugar

Which of the following doesnot conduct electricity? A.Aluminium B.Lime water C.Silver D.Pure water

Select the correct definition of wavelength. A.The height of the top of a wave is called wavelength. B.The color a wave is called wavelength. C.The distance between the top of one wave to the top of next wave is called wavelength. D.The time between the top of one wave to the top of next wave is called wavelength.

In lunar eclipse whose shadow is formed? A.Sun B.Earth C.Moon D.B and C

Choose the correct match for immiscible liquids. A.Acetone and alcohol B.Water and alcohol C.Ink and water D.Petrol and water

Moon has one sixth of the earth gravitational force. How much a person, whose weight is 60 Kg on earth, will weigh on the moon? A.360 Kg B.60 Kg C.10 Kg D.30 Kg

If you melt ice , then which of the following change can be seen? A.More intermolecular force of attraction B.Less intermolecular space C.Increase in fluidity D.Less density

Which statement is true? A.Wheat has fibrous root and reticulate venation B.Mustard has taproot and reticulate venation C.Gram has fibrous root and parallel venation D.Maize has fibrous root and reticulate venation

Which type of joint is used by bowler in cricket? A.Pivot B.Hinge C.Fixed D.Ball and socket

When Abhishek looked at a lighted torch an object he could see a faint glow, but not the torch. The object is A.Transparent B.Opaque C.Translucent D.None of these

Which part of a cell provides energy to the cell? A.Mitochondria B.Nucleus C.Cytoplasm D.Chloroplasts

Which is the correct sequence of food processing in the human body? A.Mouth, stomach, large intestine, esophagus, small intestine B.Mouth, stomach, large intestine, small intestine, liver C.Mouth, esophagus, stomach, large intestine, small intestine D.Mouth, esophagus, stomach, small intestine, large intestine

Which of the following igneous rocks is used in jewelry? A) Granite B) Obsidian C) Pumice D) All of the above

Which of the following statements is false? A) The top soil is good for plant growth. B) Soil contains many living things. C) Erosion is good for soil. D) The top soil contains humus.