How would the two vectors of the same magnitude have to be oriented. If they were to be combined to give a result equal to a vector of the same magnitude.
Two point charges A and B separated by a distance R attract each other with a force of 12 x 10-3 N.The force between A and B when the charges on them are doubled and distance is halved
A two-slit arrangement is set up to produce an interference pattern on a screen. The fringes are too close together for convenient observation. How could the distance between them be increased?
In Millikan s experiment oil drops are used to measure the elementary charge e. Which statement about the behaviour of the oil drops during the experiment is correct
A liquid flows through a pipe of non-uniform cross-section. If A1 and A2 are the cross-section of the portions of the pipe at two points the ratio of velocities of liquid at these points will be
Intermolecular forces exist between molecules of group 7 elements which of the following sequence represents the strength of the intermolecular forces?
In the formation of NaCl crystals from its aqueous solution, its cubic shape is changed to needle like when 10% urea is present as impurity, this phenomenon is called as
Primany aleohols sornally give us aldehyde when oxidized in the presence of acidified Na2Cr2O7, what will be the product, when the secondary alcohols are oxidized in same condition?
The gecko a small lizard can up a smooth glass window the gecko has millions of microscopic hairs on its toes and each hair has thousand of pads at its tip the result is that the molecules in the pad are extremely close to the glass surface on which the gecko is climbing.
What is the attraction between the gecko is climbing.
Surface and ground water sources are contaminated by various human activities. Which of the following is not a human activity that cause contamination of fresh water?
H2O and HF are the hydrides of the second period. Fluorine is more electronegative than oxygen. Anyhow, the boiling point of water is greater than that of HF. This is due to:
Oxygen and sulphur are present in VI-A group of the periodic table The hydride of oxygen i.e., H2O is liquid at room temperature but the hydride of sulphur (H2S) is a gas. This is due to
Surface and ground water sources are contaminated by various human activities which of the followings is not a human activity that causes contamination in fresh water
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
A person who constantly calls attention to his trials and sufferings is in danger of developing a martyr complex and impressing others that he is ______ seeking sympathy
In Japanese art, profound emotion is frequently couched in images of nature, observed with ______ conditioned by life in a land of dramatic seasonal change, where perils of earthquake and typhoon make nature's bounty ______ and its processes awesome and beautiful
The revelation that shakespeare wrote certain of his plays expressly for queen elizabeth i lends credence to the theory that the dark lady of the sonnets was not shakespeares mistress nor any other woman the playwright had romanced but in fact the queen herself
