A. Stroboscope
B. Heliograph
C. Solograph
D. None of these
Submitted by: Malik Asghar Hussain
Correct Answer: Heliograph ✔
Last Updated: December 12, 2019
A. Stroboscope
B. Heliograph
C. Solograph
D. None of these
Submitted by: Malik Asghar Hussain
Correct Answer: Heliograph ✔
Last Updated: December 12, 2019