OC userin Physics·22 Sep 2019What were the practical values offered by astronomy to ancient civilizations?
OC userin Physics·12 Jan 2019Out of the following which one is not true for the celestial sphere. No physically existence. The stars appear to be located within the celestial sphere. Earth is centrally localized inside the celestial sphere. The name by which the celestial sphere is also called the universe.
OC userin Physics·17 May 2019Out of the following statement which one is true for thermal radiation. Hot objects tend to radiate more per unit surface area than the cold or less hot objects The light emitted by cool or less hot objects has less energy than that of hot objects. Colder object has less total infrared emission than that of hot objects. Radio and total infrared emission per unit surface area are larger in hot objects than cooler objects.
OC userin Physics·6 Mar 2019Suppose a car is moving towards the left with constant velocity, What can be concluded from this?
OC userin Physics·12 Jul 2019Write differences in the properties of long-lived stars and short-lived stars?
OC userin Physics·2 Sep 2019Calculate how much greater is the 6-meter telescope’s light-collecting area than that of the 3-meter telescope’s light-collecting area?
OC userin Physics·9 Aug 2019What is a basic principle that applies to both internal and external devices?
OC userin Physics·12 Feb 2019What is a basic principle that applies to both internal and external devices?
OC userin Physics·8 Jul 2019A negatively charged electrode is brought close to the neutral metal sphere. Describe the changes in the sphere.