Physics Conversion of sound energy into electrical energy is done by Solar cell Gramophone Loudspeaker Microphone Solar cell Gramophone Loudspeaker Microphone ANSWER DOWNLOAD EXAMIANS APP
Physics An aircraft can perform aerobatic manoeuvres in a vertical loop because of Weight Gravity Centrifugal force Centripetal force Weight Gravity Centrifugal force Centripetal force ANSWER DOWNLOAD EXAMIANS APP
Physics A device used for converting a.c. into d.c. is called Dynamo Transformer Rectifier Induction coil Dynamo Transformer Rectifier Induction coil ANSWER DOWNLOAD EXAMIANS APP
Physics Permissible noise level at Residential area during night time is : 75 dB (A) 55 dB (A) 45 dB (A) 80 dB (A) 75 dB (A) 55 dB (A) 45 dB (A) 80 dB (A) ANSWER DOWNLOAD EXAMIANS APP
Physics Burns caused by steam are much severe than those caused by boiling water because Steam pierces through the pores of body quickly Steam is gas and engulfs the body quickly Steam has latent heat Temperature of steam is higher Steam pierces through the pores of body quickly Steam is gas and engulfs the body quickly Steam has latent heat Temperature of steam is higher ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is not a property of electromagnetic waves? Electromagnetic waves are transverse waves Electromagnetic waves do not require a medium to propagate. Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not show interference and diffraction. Electromagnetic waves are transverse waves Electromagnetic waves do not require a medium to propagate. Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not show interference and diffraction. ANSWER DOWNLOAD EXAMIANS APP
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