The phenomenon of light associated with the appearance of blue colour of the sky is Scattering Interference Refraction Reflection TRUE ANSWER : ? YOUR ANSWER : ?
In MRI machine, which one of the following is used? X-ray Ultra-sound wave Magnetic wave Sound wave TRUE ANSWER : ? YOUR ANSWER : ?
Planets are luminous heavenly bodies that twinkle luminous heavenly bodies that do not twinkle non-luminous heavenly bodies luminous heavenly bodies revolving around a star TRUE ANSWER : ? YOUR ANSWER : ?
Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit radio waves X-rays visible light ultraviolet light TRUE ANSWER : ? YOUR ANSWER : ?
In the electrical circuit of a house, the fuse acts as A load A safety device A thermopile A step down device TRUE ANSWER : ? YOUR ANSWER : ?
Which one among the following components is used as an amplifying device? Capacitor Transistor Diode Transformer TRUE ANSWER : ? YOUR ANSWER : ?
Blotting paper absorbs ink due to Viscosity of ink Siphon action Diffusion of ink through the blotting Capillary action phenomenon TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following has the lowest frequency? Xrays Ultra violet rays Visible light Gamma rays TRUE ANSWER : ? YOUR ANSWER : ?
The device used for measuring the wavelength of X-rays is Mass Spectrometer Bragg Spectrometer G.M. Counter Cyclotron TRUE ANSWER : ? YOUR ANSWER : ?