If the acceleration due to gravity at the earth's surface is 9.8 m/s2 and the mass of the earth is 80 times that of moon and radius of earth 4 times that of moon,the value of G at the moos's surface will be:
A progressive sound wave is a means of transferring energy. A progressive sound waveof constant frequency is generated in air. The intensity of energy transfer is directlyproportional to another of the wave parameters. Which of the following is correct?
The least count of stop watch is 0.10 sec,The time of 20 vibrations of pendulum is 40 sec The maximum possible percentage uncertainly in time period is
Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be
An artificial satellite travels in a circular orbit about the Earth. Its rocket engine is then fired and produces a force on the satellite exactly equal and opposite to that exerted by the Earth gravitational field. The satellite would then start to move
A solid has a sharp melting point slightly above room temperature and is a poor thermal and electrical conductor, its crystal classification by bond type is
A student put two eggs A and B in HCL solution, After five minutes he took them out for weighing but egg dropped in water accidentally. The student was able to take it out after 30 minutes, He weighed it, Its weight was 40.33g. Weight of egg B was also 40.33g. Teacher told him that if both eggs have been dropped in water, the weight of egg B would have been:
In the cyclic structure of the glucose when the position of atoms on carbon 1 is called one isomer changes to other. These isomers of glucose are called:
Rise in vapour pressure of water from 30 to 60°C is only 32 torr to 149.4 torr (117.4 torr) but from 60 to 90°C is 149.4 to 527.8 torr (378.4 torr).it is due to
If a graph is plotted between temperature on x-axis and volume on Y-axis for 1 mole of gas,then we get straight line which cuts the temperature axis at
John hogg separated blue green algae and bacteria (prokaryotes) form nucleated protists and placed them in a separate group called Monera, within the kingdom.
If science can find a cure for cancer if the nuclear arms race can be stopped and if people can work together to resolve mutual differences are the topics around which the seminar has been planned
Museum director Hoving _______ refers to the smuggled Greek urn as the "hot pot", not because there are doubts about its authenticity or even great reservations as to its price, but because its _________ of acquisition is open to question.
Many people mistakenly believe that the bodys nutritional requirements remain the same regardless of the quantity and form of other nutrients ingested physical activity and emotional state
The commission studying mass transportation suggested that the Metropolitan Transit Authority hold off purchasing new subway cars and spend money instead on preventive maintenance of all cars on repairs of substandard cars on crime prevention in all stations an better lighting for the busiest stations
Traffic speed limits are set at a level that achieves some balance between the danger of _______ speed and the desire of most people to travel as quickly as possible
The recent drop in the prime interest rate probably results from the Federal Reserve Banks tight money policy and its effect on lending institutions rather than to the drop in the overall rate of inflation
When Frazer's editors at Macmillan tried to ______ his endless augmentations, he insisted on a type size so small and a page so packed as to approach illegibility; and if that proved ______ thinner paper
Her novel published to universal acclaim, her literary gifts acknowledged by the chief figures of the Harlem Renaissance, her reputation as yet ______ by envious slights, Hurston clearly was at the ______ of her career
Like their counterparts in other countries the student movement in the united states in the 1960 was a powerful one and probably helped to bring the war in Vietnam to an end
