An object is placed 30 cm in front of a concave mirror of focal length 20cm. Calculate the distance between the object and the image.
90cm
40cm
30cm
20cm
10cm
Correct answer is A
No explanation has been provided for this answer.
Typing Speed and Accuracy Test
Data Interpretation Questions and Answers
Verbal Reasoning Questions and Answers
Logical Reasoning Questions and Answers
Quantitative Reasoning Questions and Answers
Spatial Reasoning Questions and Answers
Abstract Reasoning Questions and Answers
Numerical Reasoning Questions and Answers
Situational Judgement Questions and Answers
Nigeria General Knowledge Questions and Answers
Personality Test
Microsoft Office Questions and Answers
Puzzles Questions and Answers
See all →