Physics

Q100. Consider the following inventor–invention pairs: 1. Flying shuttle loom — John Kay; 2. Water frame — James Hargreaves; 3. Spinning jenny…

Q150. On 11 January 2026, DRDO successfully tested which third-generation fire-and-forget missile capable of top attack against moving targets? [DSSSB MTS, 26…

Q292. Which generation of computers employed microprocessors as its defining hardware technology? [UPSC CDS 2026 (General Knowledge)] Answer: C. Fourth generation Explanation:…

Q100. Under Rutherford’s atomic model, which description best fits the nucleus? [RRB Group D (20 August 2026, Shift 1)] (A) A broad…

Q40. Two conducting wires of the same material have lengths L and 1.2L. If the longer wire has half the volume of…

Q100. How much electrical energy is consumed when a 1 kW appliance operates for one hour? [RRB Group D — 18 August…

Q100. Consider these statements about sound: I. Sound speed decreases with increasing temperature at constant atmospheric pressure. II. It increases with humidity.…

Q60. If the frequency of a sound wave increases while its speed in air remains constant, what happens to its wavelength? [RRB…

100. An insulated vessel initially has 250 g water at 20°C. Steam at 100°C heats it to 25°C and the water mass…