eCoaching | Online Home Tutors & Teachers
Question Options
The component of velocity atht remains constant during the projectile motion is its : Vertical component , Horizontal Component, Both A and B, Initial component
Two bodies of masses 2 kg and 3 kg having final velocity as 2m/sec and 2m/sec,respectively are initially at rest .Their initial momentum will be : 7 kg - m.sec-1, Zero kg -m.sec-1, 60 kg -m.sec-1, None Of These
The waves which propagate by the oscillation of material particle are known as -------- : Magnetic waves, material waves, E.M waves, Mechanical waves
In a diffraction grating distance between the two adjacent slits is called : Grating element, Normal to grating, Fringes, Diffraction
The X-component of a force of 10 N acting along horizontal will be ------ : 5 N, 10 N, 15 N, 20 N
To evaluate gravitional P.E final point should be situated at ------ : Zero, 1000 km, infinite, None Of These
Gamma is the ration of specific heat at ------- : Constant t Pressure/Temperature, Constant t Volume/Pressure, Constant t Pressure/Volume, Const
To monitor the blood flow ,ultrasonic waves of ------- frequency are used : 5 MHz ? 10 MHz, 25 MHz ? 30 MHz, 9 MHz ? 90 MHz, 20 MHz ? 200 MHz
To determines the interplaner space equation used is : d sin ? = n ?, 2d sin ? = n ?, d sin ?/2 = n ?, d sin ? = n ?
One dyne is equal to ------- : 10 ^ 3 N, 10 ^ 5 N, 10 ^ -5 N, 10 ^ -3 N
If A = 4 I +3 j then unit vector will be ------ : 2 i + 3 j/6, 6/2i +3 j, 4i +3j/6, 5/4i +3 j
The slope of velocity Time graph at any instant represent ------- : Gravity, Average acceleration, Instantaneous acceleration, Velocity
Thermal pollution is an inevitable conseqence of the : 1st law of thermodynamics, 1st law of thermodynamics, 2nd law of Motion, 2th law of Motion
The efficiency of a heat engine can be increased by increasing the temperature of -------- : Engine, Cold reservior, Hot reservoir, None Of These
An organ pipe is 50 m long with one end closed its fundamental frequency will be : 250 Hz, 330 Hz, 360 Hz, 350 Hz
In a multimode step index fibre density of the optical material decreases from ---- : Edges to core, core ? edges, Even, Multiple
Glass-air boundary acts as/an -------- : Mirror, Glass, Water, air