OSCILLATION & WAVE L1

STATEMENT-1 : An oscillating charge must give out electromagnetic waves. STATEMENT-2 : Accroding to Maxwell's theory. Accelerated charges raadiates electromagnetic wave

Wave Motion L1

The period of oscillation of a simple pendulum is T = 2 pi sqrt((L)/(g)) .L is about 10 cm and is known to 1mm accuracy . The period of oscillation is about 0.5 s . The time of 100 oscillation is measured with a wrist watch of 1 s resolution . What is the accuracy in the determination of g ?

An oscillating circuit consists of a capacitor of capacitance C and a solenoid with inductance L_(1) . The solenoid is inductively connected with a short - circuited coil having an inductance L_(2) and a negligible active resistance. Their mutual inductance coefficient is eqaul to L_(12) . Find the natural frequency of the given oscillating ciruit.

Figure 7.88 shows a stretched string of length L and pipes of length L , 2L , L//2 and L//2 in options (a) , (b), (c ) and (d) respectively . The string 's tension is adjusted until the speed of waves on the string equals the speed of sound waves in the air . The fundamental mode of oscillation is the set up on the string . In which pipe will the sound produced by the string cause resonance ?

Time period of is simple pendulum of length L is T_(1) and the point time peirod of a uniform rod of the same length L pivotal about one end and oscillating in vertical plane is T_(2) . Amplitude of oscillation in both the cased is small. The T_(1)//T_(2) is:

A transistor -oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produce oscillations of frequency f . If L is doubled and C is changed to 4C , the frequency will be

A simple pendulum of length l is made to oscillate with an amplitude of 45 degrees. The acceleration due to gravity is g. Let T_(0) = 2pi sqrt(l//g) . The time period of oscillation of this pendulum will be -