Practice General science Common Questions and Answers

• The period of revolution of a geo- stationary satellite is –
• ‘Therm’ is the unit of –
• A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole?
• Stars in the sky appear to twinkle due to –
• An ice block with a piece of lead embedded in it floats in water. If ice melts the water level –
• Intensity of gravitational field of earth is maximum at –
• The spokes used in the wheel of a bicycle increase its –
• The oldest type of energy known to man is –
• When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is clue to the phenomenon of –
• The sharpness of a television image is termed as its –
• Ohm’s law obeyed in -
• Which of the following is the best conductor of electricity?
• Flight Recorder is technically called :
• The centre of gravity of a sprinter during the race lies –
• Which of the following instruments is used to measure humidity?
• If cream is removed from milk, its density –
• Which of the following is the ratio of Oxygen to Nitrogen in the air?
• The amount of water vapors differs from place to place. Its amount is minimum in which of the following places?
• Which of the following types of coal is called a brown coal among the following?
• Tanya throws a ball vertically upwards, which rise to a height of 60 m. Which of the following statements is NOT correct? [Take g = 10 ms–2] ...
• Which of the following pairing denoting the mixture of gases in air is NOT correct?
• Which of the following is the active component of the air?
• Which of the following mixture is burnt to produce very high temperatures and are used for cutting metals and for welding?
• Which of the following is a process in which water from any source change into vapour state ‘due to heat’?
• Which of the following diseases can NOT be spread through air?
• Which of the following is most correct about a balanced diet?
• The Aedes Aegypti mosquito can NOT act as a vector for -
• Which of the following acids is present in an ant’s string?
• Ammonium hydroxide is found in -
• Consider the reaction- Copper sulphate solution (blue) + Iron → Iron sulphate soluton + Copper What is the colour of the iron sulphate solution?
• Galvanisation is the process of depositing a layer of ________ on iron.
• Which of the following is an example of a plant which reproduce through its buds?
• Which of the following is not an abiotic component of our surrounding?
• The joint where the neck joins the head is known as which of the following?
• The pores on the surface of leaves which help to take in the carbon dioxide are known as which of the following?
• Which of the following is an example of mutualism?
• Which of the following organs is capable of removing unused or damaged platelets?
• An object is placed at a distance of 10 cm in front of a double convex lens made of glass of refractive index 1.5. Both the radii of curvature of the lens ...
• According to a recent study, Groundwater in India is contaminated by which element?
• Coffee, spinach, onion and tea in our diet mostly provide us with which of the following elements as food?