A. 2.0km B. 4.0km C. 10.0km D. 13.0km Correct Answer: Option B B. 4.0km Explanation AC = √(8²+6²) = 10km…
A. all the three have fixed volume B. their molecule have the same size C. their molecules are always in…
A. 0.33 B. 0.50 C. 1.50 D. 3.00 Correct Answer: Option C C. 1.50 Explanation R.d = weight in air/apparent…
A. 0.262m B. 0.455m C. 0.664m D. 0.819m Correct Answer: Option B B. 0.455m Explanation h = peg=9100/(2000×10) =0.455m
A. adhesive B. cohesive C. magnetic D. repulsive Correct Answer: Option A A. adhesive
A. conduction B. single touch C. induction D. divided touch Correct Answer: Option C C. induction
A. P is negatively charged while S is positively charged B. P is positively charged while S is negatively charged…
A. very high temperature is required for fusion B. the raw material of fusion are not easily obtained C. Energy…
A. excitation energy B. ionization energy C. binding energy D. photon energy Correct Answer: Option B B. ionization energy
A. 12.5s B. 9.0s C. 5.1s D. 0.5s Correct Answer: Option B B. 9.0s Explanation T = 0.692/λ=0.692/0.077 = 9s