An astronomical telescope has objectives and eye-piece lenses of focal length 3.5m and 5cm respectively....

WAEC 2016

An astronomical telescope has objectives and eye-piece lenses of focal length 3.5m and 5cm respectively. Determine the magnifying power of the telescope when in normal adjustment

A. 70.0
B. 17.5
C. 7.0
D. 0.7

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Correct Answer: Option A

Explanation

Magnify power = \(\frac{f_o}{f_e}\)

= \(\frac{3.5 \times 100}{5.0}\)

= 70

Previous Next

Go back to Phy classroom

Report an Error Ask A Question Download App

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

when will waec gce registration close and how much is it for 2026? Answer this

1 Answers · 1 day ago
when is mop up exam starting? Answer this

2 Answers · 4 days ago
if my aggregate is 65 percent can I study economic in lasu? Answer this

1 Answers · 1 day ago

An astronomical telescope has objectives and eye-piece lenses of focal length 3.5m and 5cm respectively....

Correct Answer: Option A

Explanation

Contributions ({{ comment_count }})

Please wait...

Modal title

Report

Block User

{{ feedback_modal_data.title }}

Quick Questions

Post your Contribution

Sign In