Physics The quality or tone of a musical sound produced by a stringed instrument depends on Amplitude of vibration Length of the strings in the instrument Frequency of vibration Wave form of the sound Amplitude of vibration Length of the strings in the instrument Frequency of vibration Wave form of the sound ANSWER DOWNLOAD EXAMIANS APP
Physics The device which converts AC to DC is Oscillator Rectifier None of these Amplifier Oscillator Rectifier None of these Amplifier ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the lowest frequency? Gamma rays Xrays Ultra violet rays Visible light Gamma rays Xrays Ultra violet rays Visible light ANSWER DOWNLOAD EXAMIANS APP
Physics Period of oscillation of 3 cm microwaves in seconds is 1 × 10–10 0.001 0.01 1 × 1010 1 × 10–10 0.001 0.01 1 × 1010 ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is a renewable resource of energy? Wind energy All of these Hydrogen fuel Solar energy Wind energy All of these Hydrogen fuel Solar energy ANSWER DOWNLOAD EXAMIANS APP
Physics For which of the following substances, the resistance decreases with increase in temperature? Nichrome Platinum Copper Pure silicon Nichrome Platinum Copper Pure silicon ANSWER DOWNLOAD EXAMIANS APP
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