MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

Newton's formula for the speed of sound was found to be wrong because of the consideration about the propagation of sound as :

50% studentsanswered this correctly

Important Questions on Physics

HARD
UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 1 - Physics>Objective Questions>Q 254
Laplace made a correction in the basic formula of velocity of sound given by Newton and evaluated the correct value by considering that sound propagation is :
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 1 - Physics>Objective Questions>Q 255
In the formation of a stationary wave which one of the following process does not occur:
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 1 - Physics>Objective Questions>Q 256
Which one of the following is true about the stationary wave :
HARD
UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 1 - Physics>Objective Questions>Q 257
Open organ pipes (air columns) are sweater than closed organ pipes because :
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 1 - Physics>Objective Questions>Q 258
Which of the following effect is also called Edison effect:
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 1 - Physics>Objective Questions>Q 259
In a bipolar junction transistor:
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 1 - Physics>Objective Questions>Q 260
The famous photoelectriceffect was fully explained on the basis of :
EASY
UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 1 - Physics>Objective Questions>Q 261
The pressure exerted by a 760 mm column of mercury at 0°C is known as: