Explanation:
7.9x10^9 km is equal to
=7900000000km
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Explanation:
i guess using a ruler.so first on the opposite side use your eye to alighn the ruler to the light from Ray box then draw a line or you can use pins and place them alighned to the Ray box an draw a line connecting the pins
You would know the period of the planets orbit.
Answer:
Image distance of the bug is - 0.4 m
Magnification is 5 times
Image is real and inverted
Solution:
As per the question:
The focal length of the lens, f = 0.1 m
Distance of the bud from the lens, v = 0.08 m
Now,
Using the lens maker formula:
where
v' = distance of the bug's image from the lens
Now,
v' = - 0.4 m
Now,
Magnification of the bug's image is given by:
m = 
m = 
Since, negative sign shows that inverted image is formed and positive value of magnification shows that real image is formed.
Step-up transformers<span> are </span>used<span> at power stations to produce the very high voltages needed to </span>transmit electricity<span> through the National Grid power lines. These high voltages are too dangerous to use in the home, so </span>step<span>-down </span>transformers<span> are</span>used<span> locally to reduce the voltage to safe levels.</span>
