World population day - 11th july No tobacco day - 31st may World environment day - 5th june World health day - 7th April.
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July 11th is observed as
Due to point isotropic sound source, theintensity at a point is observed as 40 dB. The density of air is rho=((15)/(11))(kg)/(m^3) and velocity of sound in air is 330(m)/(s) . Based on this information answer the following questions. Q. The pressure amplitude at the observation point is
The count rate observed from a radioactive source at t sound was N_0 and at 4t second it was (N_0)/(16) . The count rate observed at (11/2)t second will be
Rewrite the given statements by inserting a suitable word! words at the right place. Do not delete any word already given in the statement. Underline the inserted word Words 11th July is celebrated as World Population Day because billionth baby of the world was born on this day.
The distance of final image from AB as observed by observer is P is
The minimum temperatures from Monday through Sunday in the first week of July in southern Iceland are observed to be -02^@C, 4^@C, 5^@C,7^@C,9^@C,10^@C . What is the range of the temperature?
The median of 11 observations is 10. The number of possible observations in the data which are less than 10 is 5 (b) 6 3 (d) 10
The probability that a particular day in the month of July is a rainy day is 3/4 . Two person whose credibility are 4/5 and 2/3 , respectively, claim that 15th July was a rainy day. Find the probability that it was really a rainy day.
The probability that a particular day in the month of July is a rainy day is 3/4 . Two person whose credibility and 4/5 and 2/3 , respectively, claim that 15th July was a rainy day. Find the probability that it was really a rainy day.
A sound source is moving with speed 50 m//s towards a fixed observer. Frequency observed by observer is 1000Hz . Find out apparent frequency observed by observer when source is moving away from observer (Speed of sound =350 m//s )
