COMPULSORY SCIENCE | Model Question With Solution

-
                                                      GROUP 'A'

                                        1. Answer the following Question : 


         COMPULSORY SCIENCE | Model Question With Solution ( Set - 1 )

a. What is Gravitational constant ?     Ans ; - The Force of attraction between two unit masses separated by a unit distance is called gravitational constant.
b. List two forces which act on a body when it is immersed in water.    Ans :- The two forces are :-i. Upthrust or buoyancy or Upward Force.ii. Downward force or weight of the body.
c. List any one application of a formula E=mc2.Ans :- E=mc2 is used to generate huge amount of energy released in a nuclear reaction which can be used to generate electricity.
d. Why does a convex lens have positive power ?
Ans :- A convex lens has positive power because it has positive focal length  (p=1/f).
e. What is inverter ? 
Ans :- An inverter is a devices that converts direct current ( DU) into alternating current (AC) and vice versa .

                                 

Comments

Post a Comment

Popular posts from this blog

How to Sell Photos Online and Make Money (2020) Best Websites

-
Image
        How to Sell Photos Online and Make Money 2020 Best Websites  Sell Photos Online and Make Money 2020 -  Whether you're a pro photographer or just like taking pictures in your spare time, you could   make a nice amount of money   by selling your photos online – even without a top-of-the-range camera. In fact, if you've got a decent   phone camera   and a steady hand, you're already in with a shot. How to Sell Photos Online and Make Money 2020 However you take your pics, there are a growing number of ways to  monetise  photos you've already taken. And there are heaps more ways to develop your photography skills (and income) from selling your Insta stock to going all out and making a photo book. 5 Sites Where You Can  Sell  Your  Photos Online 1.  Shutterstock. Earn up to $120 per image download on Shutterstock.  Generally  images  with people  sell  well on...
Read more

Google's 25th Birthday 2023

-
Image
 September 27, 2023, is big occasion in the tech world – Google's 25th birthday. The journey of this American multinational tech company had humble beginnings and the entire journey is nothing short of remarkable.    Birthday 🥳🥳🥳 Google 25th anniversary Wow........cool Cool..........
Read more

What is Medium And High Level Professions ? | Education E- Learning

-
Image
What is Medium And High Level Professions ? | Education E- Learning |  Introduction Profession is a types of job that needs special training or skill, especially one that needs a high level of education. A professional person has special skill is gained through education or training. There are different types of professions. Different people with different skill or qualification have different level of professions. Some are junior, some seniors, some trainee and some medium as well as high level professionals. Professions also differ in nature and sector. So, professions can be categorized into different levels i.e. basic, medium and high levels.                           Medium and high level professions                                            Different people work in a profession or business ...
Read more