Answer: Let us assume, the final velocity with which the ball will strike the ground be 'v' and the time it takes to strike the ground be 't'.... View Article
Answer: (B)Â Stomata The part of the plant that takes in carbon dioxide from the air for photosynthesis stomata. Stomata are the pores present... View Article
Answer: If the chemical composition is changing, then it is a chemical change, and if the chemical composition is remaining the same, then it is... View Article
(D) upward Fleming's Left-hand rule: Places the thumb, forefinger, and middle finger in mutually perpendicular directions. The finger in the... View Article
Let m be the mass of the unknown parrot. 111N = (12kg + m)a (equ.1) Following is the equation for the whole system pf parrots 222N = (12kg + m... View Article
Answer: (D) is the same at all points A coil of many circular turns of insulated copper wire wrapped closely in a cylinder’s shape is called a... View Article
Answer: The traffic light at three different road crossings change after every 48 seconds,72 seconds, and 108 seconds, respectively. So let us... View Article
Answer: Yes, if it is limited and confined to a place then the soil and water pollution can be controlled, to some extent air pollution can also... View Article
This information is not sufficient. For considering a trait as dominant or recessive, we need data of at least three generations. This data is... View Article
Answer: Image formed is real and inverted ∴ Magnifications (m) = -1 Since the image is real, image distance is a positive value. Image... View Article
Answer:Â 14000 N Given parameters Initial velocity (u) = 0 Distance travelled (s) = 400 m Time taken (t) = 20 s Find out The force acting... View Article
Alkyl halide contain halogen atom linked to an alkyl group, and they are polar in nature are true about Alkyl halide. Alkyl halides (also known... View Article
The direction of the magnetic field is vertically downwards. The current direction is from the front wall to the back wall because negatively... View Article
Answer: Work is the product of the component of the force in the direction of the displacement and the magnitude of this displacement. W = (F... View Article
(a) All types of paper can be recycled. Exceptions like plastic-coated or shiny papers are difficult to recycle. (b) It is impossible to... View Article
We can solve the given problem by using the law of conservation of momentum. Mass of one of the objects (m1) = 100 g = 0.1 kg Mass of the other... View Article
Given: Mass of the motor car, m = 1200 kg Initial velocity of the motor car, u = 90 km/h = 25 m/s Final velocity of the motor car, v = 18... View Article
Answer: A triangle is a type of polygon, which has three sides, and the two sides are joined end to end is called the vertex of the triangle. An... View Article
Gas fills the vessel in which it is kept. Reason: Gases have a negligible intermolecular force of attraction between the particles of gas. As a... View Article