Answer:
for air focus is 12 cm
when immersed in water focus is 39 c.m
Explanation:
we know lens maker formula
so for air n=1 and n2=1.5
now putting the value in lens maker formula now [/tex][/tex]
when lens is immersed in water then n1=1.3 and n2=1.5
putting the value in lens maker formula
now [/tex]
Atomic mass = number of protons + number of neutrons = 4+5 = 9 amu
Answer:
T = 144°C
Explanation:
From the law conservation of energy,
Heat loss = Heat gain
mc(T-50) = 2mc(50-3)
T-50 = 2(47)
T-50 = 94
T = 94+50
T = 144°C
Plz check it out