Physics It is easier to roll a stone up a sloping road than to lift it vertical upwards because Work done in lifting the stone is equal to rolling it. Work done in rolling a stone is less than in lifting it. Work done in both is same but the rate of doing work is less in rolling. Work done in rolling is more than in lifting. Work done in lifting the stone is equal to rolling it. Work done in rolling a stone is less than in lifting it. Work done in both is same but the rate of doing work is less in rolling. Work done in rolling is more than in lifting. ANSWER DOWNLOAD EXAMIANS APP
Physics Which electromagnetic radiation is used for satellite communication ? Ultraviolet Radiowave Millimeter wave Infrared Ultraviolet Radiowave Millimeter wave Infrared ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity required to place a vehicle in orbit around the moon is ________ that required to place it in orbit round the earth. Less than Equal to Greater than Greater than or equal to Less than Equal to Greater than Greater than or equal to ANSWER DOWNLOAD EXAMIANS APP
Physics Transformer is a device to convert Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. C. to A.C. Mechanical energy into Electrical energy Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. C. to A.C. Mechanical energy into Electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics Remote-sensing device has an inbuilt source of Ultraviolet ray G-ray X-ray Infrared ray Ultraviolet ray G-ray X-ray Infrared ray ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because more surface area of the barrel is in contact with the road when it is pulled the full weight of the barrel comes into play when it is pulled the rolling friction is much less than the sliding friction coal tar is a liquid and it flows in the barrel when it is rolled more surface area of the barrel is in contact with the road when it is pulled the full weight of the barrel comes into play when it is pulled the rolling friction is much less than the sliding friction coal tar is a liquid and it flows in the barrel when it is rolled ANSWER DOWNLOAD EXAMIANS APP
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