Answer:
D. cause the program to stop execution when the expression is evaluated
Explanation:
D. cause the program to stop execution when the expression is evaluated
Answer:
It's too long questions..
Answer:
Object should be placed at a distance, u = 7.8 cm
Given:
focal length of convex lens, F = 16.5 cm
magnification, m = 1.90
Solution:
Magnification of lens, m = -
where
u = object distance
v = image distance
Now,
1.90 = 
v = - 1.90u
To calculate the object distance, u by lens maker formula given by:
u = 7.8 cm
Object should be placed at a distance of 7.8 cm on the axis of the lens to get virtual and enlarged image.
Answer:
Wavelength
Explanation:
The distance between corresponding points of adjacent waves is known as the wavelength.
In a wave motion, the point at which displacement is at maximum is known as the crest of the wave while the point where the displacement is at minimum is known as the trough of the the wave.
The distance between these two successive crest and trough of he wave as known as its wavelength.
Wavelength can be expressed as a function of frequency and velocity of a wave.