Total volume of blood in a normal adult human being is
Total volume of blood in a normal adult human being is
A. 5-6 liters
B. 3-4 liters
C. 8-10 liters
D. 10-12 liters
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In winter an iron pipe feel colder than a wooden window . This is because wood is_______?
In winter an iron pipe feel colder than a wooden window . This is because wood is_______?
A. Conductor
B. Non-Conductor
C. Semi- Conductor
D. Not a solid while iron is a solid
E. None of theseMain and excessive part of plasma consists of ________?
Main and excessive part of plasma consists of ________?A. Carbon dioxide
B. Oxygen
C. Water
D. GlucoseAccording to the theory of relativity, which of the following always remains constant ?
According to the theory of relativity, which of the following always remains constant ?A. Length of an object
B. Time
C. Space
D. Velocity of lightHen and chicken disorder is associated with__________ ?
Hen and chicken disorder is associated with__________ ?A. Mango
B. Grapes
C. Tomato
D. GuavaThe process involved in making soap is called?
The process involved in making soap is called?A. saponification
B. hydrolysis
C. condensation
D. polymerisationWhen sound waves travel from air to water which of the following quantities remains unchanged?
When sound waves travel from air to water which of the following quantities remains unchanged?A. Speed
B. Frequency
C. Intensity
D. WavelengthSound is propagated in the form of longitudinal waves. When sound travels from one medium to another medium the wavelength and velocity remains changed and the frequency remains unchanged.The velocity of sound in the given medium is obtained by
v=nW, where “n” is the frequency of sound and “W” is its wavelength in that medium. Velocity of sound is directly proportional to the wavelength.Thus, if the velocity of sound wave doubles when travelled from one medium to another medium then its wavelength also doubles.The frequency of sound depends on the source of the sound, not the medium of propagation .Hence the frequency does not change when travelled from air to water.