Question 26
Size of the class 150 - 175 is:
(a) 150
(b) 175
(c) 25
(d) –25
Size of the class 150 - 175 = Upper limit - Lower limit = 175 - 150 = 25
Question 14
In a frequency distribution with classes 0-10, 10-20 etc., the size of the class intervals is 10. The lower limit of fourth class is:
(a) 40
(b) 50
(c) 20
(d) 30
The size of class interval 100-150 is:
The energy of a photon in Joules that has a wavelength of 9.0 m is: