Physics Which one among the following doesn't have any effect on velocity of sound ? Pressure Humidity Density Temperature Pressure Humidity Density Temperature ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbows are produced when sunlight : Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction None of the given statements is correct. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection. Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction None of the given statements is correct. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection. ANSWER DOWNLOAD EXAMIANS APP
Physics A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct? C1pa = C2pg C2>C1 C1>C2 C1 = C2 C1pa = C2pg C2>C1 C1>C2 C1 = C2 ANSWER DOWNLOAD EXAMIANS APP
Physics Danger signals are generally red as red light Is least bright Has lowest velocity Gives comfort to eye Undergoes least deviation Is least bright Has lowest velocity Gives comfort to eye Undergoes least deviation ANSWER DOWNLOAD EXAMIANS APP
Physics Which tube used to produce X-ray? Roentgen Coolidge tube None of these X-ray tube Roentgen Coolidge tube None of these X-ray tube ANSWER DOWNLOAD EXAMIANS APP
Physics Out of the following, which is not emitted by radioactive substance? Electrons Neutrons Alpha particles Electromagnetic radiations Electrons Neutrons Alpha particles Electromagnetic radiations ANSWER DOWNLOAD EXAMIANS APP
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