A refracting astronomical telescope has objective and eyepiece lenses of focal lengths 38 cm and 0.40 cm, respectively. What is the angular magnification of this instrument?
a. 95
c. 27
b. 50
d. 19.6
A
Physics & Space Science
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Both C 3 and C4 plants are equally responsive to increased levels of carbon dioxide
What will be an ideal response?
Physics & Space Science
Distinguish between reflection and refraction
Physics & Space Science
Alpha Centauri A and B have an average orbital separation of about 23 AU and a period of about 80 years. Approximately what is the sum of their masses? If we presume that Alpha Centauri A is a star like our Sun, what is Alpha Centauri B's mass?
What will be an ideal response?
Physics & Space Science
What is the peak voltage in an ac circuit where the rms voltage is 120 V?
A) 84.8 V B) 120 V C) 170 V D) 240 V
Physics & Space Science