Answer:
Explanation:
Let the slide be at a distance of u from lens . So the object distance is u.
Image distance v = 13 - u .
Using lens formula
1/v -1/u = 1/f
1/ ( 13 - u) - 1 / u = 1 / 2.33
u - (13 - u )/u(13 -u ) = 1/2.33
2u - 13/ 13u - u² = 1/ 2.33
4.66 u - 30.29 = 13 u -u²
u² - 8.34 u - 30.29 = 0
u = -2.73 cm
So lens will be at a distance of 2.73 cm from the slide.
D. Is leaf like and protects the developing flower.
Answer:
B. underwater mountain range
The product of √30 and √610 is 10√183.
√30 = √(2×3×5)
and √610 = √(2×5×61
Since 61 can't be factorised further.
Therefore, the value of √30×√610 is
= √(2×3×5×2×5×61)
= 2×5×√(3×61)
=10√183
Answer:
20kph
Explanation:
Since she travels 100kpm in 5 hours and 100 divided by 5 is 20 she would travel 20km in one hour