Which of the following was India's first interplanetary mission?
1). Chandrayaan Mission
2). Mangalyaan Mission
3). Aryabhatta Mission
4). Philae Mission
1. The fundamental scientific principle in the operation of battery is
2. Which of the following is not a valid conservation law of classical physics?
4. The working of a rocket is based on the principle of:
5. The weakest of all fundamental forces is
6. Which of these is true of all simple machines?
8. The part of the eye having the larges refractive index is :
9. What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?