The refractive power of a lens of focal length 40 cm is
A. 4.0 D.
B. 0.40 D.
C. 2.5 D.
D. -2.5 D.
E. 0.16 D.
C. 2.5 D.
Physics & Space Science
You might also like to view...
A scientific theory can be proven true if the correct experiments are performed
Indicate whether the statement is true or false
Physics & Space Science
Resistance and Resistivity: If a quantity you calculated has units of 
what is that quantity?
A. potential B. resistivity C. resistance D. capacitance E. current
Physics & Space Science
A motor drives a shaft with diameter d 5 46 mm at f 5 5.25 Hz and delivers P 5 25 kW of power. The maximum shear stress in the shaft is approximately:
(A) 32 MPa
(B) 40 MPa
(C) 83 MPa
(D) 91 MPa
Physics & Space Science
How are radio waves generated? How are they detected? What do you think limits the highest radio frequency that can be generated?
Physics & Space Science