The instrument which uses sound waves to measure the depth of oceans is –
Theinstrumentwhichusessound waves to measure the depth of oceans is sonar. Sound waves can travel much faster from one point to another. Sound waves are far more accurate for measuring these vast distances. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Sonar mayalsobeusedinairforrobotnavigation,and SODAR is used for atmospheric investigations.
The downstream speed of a boat is 6 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
Select the set in which the numbers are related in the same way as are the numbers of the following set.
(4, 14, 44)
How many such digits are there in the number’ 322476587’ each of which is as far away from beginning of the number as when the digits are arrange...
Select the option in which the numbers are related in the same way as are the numbers in the given set.
(109, 114, 139)
If digits of each number are added and sum is multiplied by 2, and the resultants are arranged in descending order, which number will be at last position?
If all the digits of each number are added, the sum of which number will be the largest?
Select the option in which the numbers are related in the same way as are the numbers of the following set.
(18, 6, 36)
64 8 5
420 14 10
What the difference between the resultant of the first row and the second row?
...In the following number sequence, how many such 8s are there, each of which is exactly divisible by its immediate preceding number but not divisible by...
12 5 20
m 13 8
If ‘m’ is the resultant of the first row, what the resultant of the second row?
...
