Increase : 375 by 4% | 7 | PERCENTAGE | MATHS | ICSE | Doubtnut

A sonometer wire is in unison with a tuning fork.When its lengths increases by 4%, it gives 8 beats per secon with the same the fork. The frequency of the fork is

Assertion : When current through a bulb is increased by 2% power increases by 4% Reason : Current passing through the bulb is prop (1)/(Resistance) .

250 cm is 4% of 1 km.

Calculate the percentage change in the time period of a simple pendulum, if (i) the length of the pendulum be increased by 4% (ii) the mass of the bob be increased by 30% (iii) the oscillation amplitude be decreased by 40% and (iv) the pendulum be taken to a place where the value where the value of g be 0.8% more.

The price of a house is Rs.6,76,000. If the price increases every year by 4%, before two years back the price of the house was

A sonometer wire is in unison with a tuning fork . When its length increases by 4% , it gives 8 beats/with the same fork. What is the frequency of the fork ?

If tension is increased by 4% in vibrating string find % change in speed of wave?