इन 2 Planets का अपना कोई चंद्रमा नहीं है | These 2 planets have no moon of their own #Shorts

Two planets have masses M and 16 M and their radii are a and 2a, respectively. The separation between the centres of the planets is 10a. A body of mass m is fired trom the surface of the larger planet towards the samller planet along the line joining their centres. For the body to be able to reach at the surface of smaller planet, the minimum firing speed needed is :

Statement/ कथन : 1. No butter is jam. / कोई बटर जैम नहीं है | 2. Banana is a butter. / केला बटर है | Conclusion/ निष्कर्ष: I. Banana is not a jam. / केला जैम नहीं है | II. Banana may or may not be a jam. / केला जैम हो भी सकता है और नहीं भी |

If the ratio of the weights of a body of mass 'm' measured on two different planets 'A' and 'B' is 1 : 2 and the ratio of radii of two planets 'A' and 'B' is 2 : 4, respectively, then the ratio of the masses of two planets is, respectively ______ .

Statement/ कथन : 1. All scanners are mouse./ सभी स्कैनर माउस हैं। 2. Some mouse are printers./ कुछ माउस प्रिंटर है। Conclusion/ निष्कर्ष: I. No printer is a scanner./ कोई प्रिंटर स्कैनर नहीं है। II. Some printers are mouse./ कुछ प्रिंटर माउस हैं। III. No printer is a mouse./ कोई भी प्रिंटर माउस नहीं है। IV. No scanner is a printer./ कोई स्कैनर प्रिंटर नहीं है।

The ratio of KE of a planet at the points 1 and 2 is :

A planet has a mass M_(1) and radius R_(1). The value of acceleration- due to gravity on its surface is g_(1). There is another planet 2, whose mass and radius both are two times that of the first planet. Which one of the following is the acceleration due to gravity on the surface of planet 2?

Statement/ कथन : 1.All dogs are lions/ सभी कुत्ते शेर हैं | 2.No elephant is a lion / कोई भी हाथी शेर नहीं है। Conclusion/ निष्कर्ष: I. No dog is an elephant/ कोई भी कुत्ता हाथी नहीं है II. No lion is a dog / कोई भी शेर कुत्ता नहीं है | III. Some elephants are dogs /कुछ हाथी कुत्ते हैं |

Two hypothetical planets 1 and 2 are moving in the same eliptical path as shown in the figure. If the planets are situated at minimum and maximum distance from the sun and one of the planet, say 1 , has speed v . Find the relative angular speed of the planets for the given situation.

Two planets have the same mass, M. Each planet has a constant density, but the density of planet 2 is twice as high as that of planet 1. Identical objects of mass m are placed on the surfaces of the planets. What is the relationship of the gravitational potential energy, U_(1) on planet 1 to U_(2) on planet 2?