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
The displacement-time graph of a particle acted upon by a constant force is ?
a straight line
a circle
a parabola
any curve depending upon initial conditions
If radius of the earth were to shrink by 1%, its mass remaining the same, g would decrease by nearly ?
1%
2%
3%
4%
Ultrasonic Waves of frequency 3 x 105 Hz are passed through a medium where speed of sound is 10 times that in air (Speed of sound in air is 300 m/s). The wavelength of this wave in that medium will be of the order of
1 cm
10 cm
100 cm
0ยท1 cm
Direction: The following item consist of two statements, Statement I and Statement II. You are to examine these two statements carefully and select the answers to these items using the code given below:
Statement I : Due to diffused or irregular reflection of light, a closed room gets light even if no direct sunlight falls inside the room.
Statement II : Irregular reflection, where the reflected rays are not parallel, does not follow the laws of reflection.
Both the statements are individually true and Statement II is the correct explanation of Statement I
Both the statements are individually true but Statement II is not the correct explanation of Statement I
Statement I is true but Statement II is false
Statement I is false but Statement II is true
Statement I : While putting clothes for drying up, we spread them out.
Statement II : The rate of evaporation increases with an increase in surface area.
