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Last Updated On 23-10-2022 - By Sara

A field in the form of a parallelogram has on side 150 m and its distance from the opposite side is 80 m. The cost of watering the field at the rate of 50 paise per square meter is

(a)

Rs. 3500

(b)

Rs. 5000

(c)

Rs. 6000

(d)

Rs. 7000


Question ID - 50155 :-

A field in the form of a parallelogram has on side 150 m and its distance from the opposite side is 80 m. The cost of watering the field at the rate of 50 paise per square meter is

(a)

Rs. 3500

(b)

Rs. 5000

(c)

Rs. 6000

(d)

Rs. 7000

1 Answer
5876 Votes
3537

Answer Key : (c) -

Area of the field = bh = 150

 

Cost of watering = 12000 Rs. 6000.



Next Question :

The magnetic field associated with a light wave is given, at the origin, by B=B0[sin(3.14 107)ct + sin(6.28 7ct).  If this light gals on a silver plate having a work function of 4.7 eV, What will be the maximum kinetic energy of the photo electrons? (c=3 108ms−1,h=6.6 10−34 J-s)

a.

7.72eV

b.

8.52eV

c.

12.5eV

d.

6.82eV


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