The refractive index of a liquid is 1.5. If the velocity of light in vacuum is 3.0 x 10^8 ms‾¹; the velocity of light in the liquid is
A. 1.5 x 108ms−1 B. 2.0 x 108ms−1 C. 3.0 x 108ms−1 D. 4.5 x 108ms−1 Correct Answer: Option B = 2.0 x 108ms−1 Explanation n = speed in air/speed in glass 1.5 = 3×10^4/speed in glass Speed in glass = 3 x 10^8m/s / 1.5 = 2 x 108m/s...
Consider the three forces acting at O and in equilibrium as shown in the figure. Which of the following equations is/are CORRECT?
I. P1 cos θ1 = p1 cos θ2 II. P3 = P1 cos θ4 + P2cos2 III. P1sinθ1=P2sinθ2 A. I only B. II only C. III only D. I, II and III only Correct Answer: Option C = III only
A hydrometer is an instrument for measuring the
A. a depth of water of water in a vessel B. relative density of a liquid by the method of flotation C. relative density of a liquid by finding the apparent loss in weight D. relative humidity of the air Correct Answer: Option B = relative density of a liquid by...
A magnetic needle is suspended first at the earth’s north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are
A. 00 and 00 B. 600 and 600 C. 900 and 900 D. 900 and 00 Correct Answer: Option D – 900 and 00
What is the cost of running five 50W lamps and four 100W lamps for 10 hours if electrical energy costs 2 Kobo per KWh?
A. N0.65 B. N0.39 C. N3.90 D. N0.13 Correct Answer: Option D = N0.13Products
-
Download Business Administration Project Topic PDF - Effects of Job Stress on Employee’s Performance in Evans Nigeria
Original price was: ₦600.00.₦300.00Current price is: ₦300.00.
-
Download Accountancy Project Topic PDF - Effect Of Cost Control On The Profit Of An Organization (A Case Study Viju Milk Industries Nigeria Limited)
Original price was: ₦600.00.₦400.00Current price is: ₦400.00.
-
Download Animal Production Journal Article PDF - Performance of Some Forage Rass Species in the Southern Guinea Savannah Agro-Ecological Zone in Nasarawa State of Nigeria
Original price was: ₦600.00.₦300.00Current price is: ₦300.00.
-
Download Conference Paper Article PDF - Video Summarization Based Handout Generation from Video Lectures: A Gesture Recognition Framework
Original price was: ₦600.00.₦300.00Current price is: ₦300.00.
-
Download Conference on Advanced Computer Theory Article PDF - Real-Time Mono Vision Gesture-Based Virtual Keyboard System
Original price was: ₦600.00.₦300.00Current price is: ₦300.00.