dimagi paheli - 73 Find the same dragon egg | Paheiyan | Riddle in hindi #shorts

Two ships are there in the sea on either side of a light house in such a way that the ships and the light house are in the same straight line. The angles of depression of two ships are observed from the top of the light house are 60o and 45o respectively. If the height of the light house is 200 m, find the distance between the two ships. (U s e sqrt(3)=1. 73)

In the circuit shown all live resistors have the same volue 200 oms and each cell has an emf 3 volts. Find the open circuit voltage and the short circuit current for the terminals A and B.

A body emits maximum energy at 4253 Å and the same body at some other temperature emits maximum energy at 2342 Å . Find the ratio of the maximum energy radiated by the body in a short wavelength range.

Kidney beans are soaked overnight before cooking. (a)What is the observation you find after soaking? (b) Name the phenomenon involved in the above observation. Explain the reason. (c) Do you find the same change when a raw egg is placed in water? Justify that.

The bar graph shown in Figure represent the circulation of newspapers in 10 languages. Study the bar graph and answer the following questions: What is the total number of newspapers published in Hindi, English, Urdu, Punjabi and Bengali? What percent is the number of news papers published in Hindi of the total number of newspapers? Find the excess of the number of newspapers published in English over those published in Urdu. Name two pairs of languages which publish the same number of newspapers. State the language in which the smallest number of newspapers are published. State the language in which the largest number of newspapers are published. State the language in which the number of newspapers published in between 2500 and 3500. State whether true or false: The number of newspaper published in Malayalam and Marathi together is less than those published in English. The number of newspapers published in Telugu is more than those published in Tamil.

In the circuit given as Fig. 14.7, Boojho observed that copper is deposited on the electrode connected to the negative terminal of the battery. Paheli tried to repeat the same experiment. But she could find only one copper plate. Therefore she took a carbon rod as negative electrode. Will copper be still deposited on the carbon rod? Explain your answer.

A siphon is used to drain water (density =rho ) from a wide tank. The inlet and outlet mouth of the siphon are at the same horizontal level and the highest point of the siphon tube is at a height H from the mouth of the tube. Height of water in the tank above the tube mouth is h (see fig). Atmospheric pressure is P_(0) . (a) Will the water drain out in this siphon? if yes, at what speed (V)? (b) Find pressure at the top of the siphon tube (call in P) (c) Find pressure just inside the left mouth of the tube. (d) If left part of the tube is slightly cut short, without disturbing anything else, what effect it will have on V and P? (e) If the right end of the tube is lowered by adding more lenght of tube, it was observed that flow stops when lenght of right limb of the tube becomes H_(0) . Find H_(0) .