Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
A sonometer wire having a length of 50cm is vibrating in fundamental mode with a frequency of 100Hz.Which of the following is the type of propagating wave and its speed?
Longitudinal,50 m/s
Transverse,50 m/s
Longitudinal,100 m/s
Transverse,100 m/s
Which one of the following is the amount of haet given up when 20g of steam at 100c is condensed and cooled to 20c?
10000 cal
11400 cal
12400 cal
13600 cal
Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material?
Conduction only
Convection only
Radiation
Both conduction and convection
Consider the following statements.
1. Different plant species grow together.
2. Light cannot penetrate into the lower strata full of undergrowth.
Which of the following types of vegetation is characterized by the above?
Tropical deciduous
Equatorial moist evergreen
Mediterranean
Warm temperature broad leaved deciduous.
On planet Earth, there is no centrifugal force at the
Equator
Tropic of Cancer
Tropic of Capricom
Poles
