A projection lantern is used to give the image of a slide on a screen. If the image is 24 times as large as the slide and the screen is 72.0m from the projecting lens, what is the position of the slide from the lens?
A. 0.3m B. 3.0m C. 3.5m D. 4.0m Correct Answer: Option B – 3.0m Explanation V = 72m U = Magnification = 24 But Magnification = V/U ∴ 24 = 72/U U = 72/24 U = 3.0m
If a charged ion goes through combined electric and magnetic fields; the resultant emergent velocity of the ion is?
A. E/B B. EB C. B/E D. E – B Correct Answer: Option A = E/B
A radio is operated by eight cells each of e.m.f. 2.0V connected in series. If two of the cells are wrongly connected, the net e.m.f. of the radio is?
A. 8V B. 10V C. 12V D. 16V Correct Answer: Option C = 12V Explanation Net e.m.f = (8 x 2) – (2 x 2) = 12V
The main reason for making the cover of a vacuum flask airtight is to prevent heat loss by?
A. convection B. conduction C. radiation D. evaporation Correct Answer: Option A – convectionProducts
-
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.