Why does a red rose appear black in green light? Solution : (i) Red rose in green light appears to be black. This is because the rose absorbs the green light falling on it and reflects none. This is because the rose reflects the red light falling on it and absorbs none of it. What […]
Why do your feet feel colder stepping on ceramic tiles than on carpet?
What are five examples of asexual reproduction?
What are five examples of asexual reproduction? There are a number of types of asexual reproduction including fission, fragmentation, budding, vegetative reproduction, spore formation and agamogenesis. What is difference between binary fission and multiple fission explain with example? In multiple fission, a single parent cell is divided into many daughter cells. It is the most […]
What effect does temperature have on pendulum?
What effect does temperature have on pendulum? A major source of error in pendulum clocks is thermal expansion; the pendulum rod changes in length slightly with changes in temperature, causing changes in the rate of the clock. An increase in temperature causes the rod to expand, making the pendulum longer, so its period increases and […]
Which element loses an electron most easily?
Which element loses an electron most easily? cesium What happens when an atom loses or gains a proton? Short Explanation: If an atom loses electrons or gains protons, it will have a net positive charge and is called a Cation. If an atom gains electrons or loses protons, it will have a net negative charge […]
Where is the maximum potential energy in a pendulum?
Where is the maximum potential energy in a pendulum? A pendulum’s mass has its maximum velocity at the bottom of its path; therefore its KE is a maximum and its GPE is 0. KE equals GPE midway between its highest point and the bottom of its path. Do pendulums swing forever? As the pendulum swings […]
What is the principle of a capacitor?
What is the principle of a capacitor? A capacitor is a device that is used to store charges in an electrical circuit. A capacitor works on the principle that the capacitance of a conductor increases appreciably when an earthed conductor is brought near it. Hence, a capacitor has two plates separated by a distance having […]
Who killed the most U-boats?
Who killed the most U-boats? Of the U-boats, 519 were sunk by British, Canadian, or other allied forces, while 175 were destroyed by American forces; 15 were destroyed by the Soviets and 73 were scuttled by their crews before the end of the war for various reasons. Did the USS Yorktown sunk at Midway? On […]
What is tightly coiled DNA called?
What is tightly coiled DNA called? In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. DNA and histone proteins are packaged into structures called chromosomes. What is the meaning […]