Which of the following is not a reason fluorescent lamps are advantages over incandescent lamps?
1 answer:
It’s because flourecent lights operate at higher temperatures than incadecent lights.
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Answer:

Explanation:
Given data
Length L=2.9 cm=0.029m
Speed of sound v=335 m/s
to find
Fundamental frequency f
Solution
As we know that frequency is given as:
f=v/λ

Question 1 :
1. VELOCITY
2. SPEED
3. NEWTON
4. MOMENTUM
5. MASS
Question 2
1. FORCE
2. FRICTION
3. GRAVITY
4. ELECTROAGNETIC FORCE
5. ACCELERATION
(30 km)/(0.75 km/min) = 40 min
Answer:
option a) sound is the right answer