Indian Navy SSR (Sailor) Science & Technology — practice questions
20 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Indian Navy SSR (Sailor) Science & Technology in the app →The Sanskrit text in which Acharya Kanada's atomic ideas are recorded is:According to Dalton's atomic theory (1808):Who discovered the **electron** and in which year?Cathode rays are streams of:The charge of an electron, by convention, is:The actual magnitude of the charge of an electron in coulombs is approximately:J. J. Thomson received the Nobel Prize in Physics in:Thomson's model of the atom is also called the:In the watermelon analogy of Thomson's atomic model:The famous **gold foil experiment** was conducted in 1911 by:In the gold foil experiment, the particles aimed at the gold foil were:If an atom were the size of a cricket ground (~100 m), the nucleus would be roughly the size of:An atom is electrically neutral because:The deflection of alpha particles from their straight path in the gold foil experiment is technically called:In humans, sound is produced by the vibration of:A tuning fork is usually shaped like the letter:For a clear echo, the minimum time gap between the original and reflected sound must be about:The SI unit of power is the:If 600 J of work is done in 30 s, the power developed is:A 50 N load is lifted by an ideal machine using an effort of 10 N. The mechanical advantage is: