WAVES PART 2

Match the following {:(" PART - A "," PART - B "),("a) Polarisation" ,"e) All types of waves"),("b) interference","f) longitudinal waves"),("c) diffraction","g) transverse waves"),("d) reflection","h) only with transverse waves"),(,"i) stationary waves produced in stretched strings "):}

JEE MAINS 2020 | SOUND WAVES | Quick Revision Part - 1 | Important Questions | Physics

JEE Mains 2020 - 30 Days Revision | Wave Optics Part 2 - Important Questions + Revision | Physics

In part a of Fig , a surfer rides on the front side of a wave , at a point where a tangent to the wave has a slope of theta = 30.0^(@) . The combined mass of surfer and surfboard is m = 83.0 kg , and the board has a submerged volume of V = 2.50 xx 10^(-2) m^(3) . The surfer maintains his position on the wave as the wave moves at constant speed toward shore . What is the magnitude and direction (relative to the positive direction of the x-axis in part b of Fig) of the drag force on the surfboard from the water ?

Class 11 NEET 2020 - Revision In 60 Days | Waves Part 1 - Quick Revision | NEET Physics

Class 11 NEET 2020 - Revision In 60 Days | Waves Part 3 - Quick Revision | NEET Physics

The energy of the electromagetic wave is of the order of 15 keV. To which part of the spectrum dose it belong?

The electric field part of an electromagnetic wave in a medium is represented by E_x=0, Ey =2.5 (N)/(C) cos [( 2pi xx 10^(6) (rad)/( m ) ) t- (pi xx 10^(-2) ("rad")/( s)) x ], E_z=0 The wave is

[A] : [A]: ECG is a record of electrical activity of the heart that shows certain waves called PQRS and T waves. [R]: It gives important information concerning the spread of excitation to the different parts of heart and helps in diagnosis of heart disor- ders.