NEET Test 150...

Light of wavelength 300 nm is incident on a photo-sensitive surface. The stopping potential for emitted photoelectrons is 2.5V. The wavelength of incident light is reduced to 150 nm. The stopping potential for emitted photoelectrons is:

The melting points of Cu, Ag, and Au follow the order:

Sea otters, an example of a keystone species, limit the density of which of the following species?

A student forgot to add the reaction mixture to the round-bottomed flask at 27^∘C but instead, he/she placed the flask on the flame. After a lapse of time, he realized his mistake, and using a pyrometer he found that the temperature of the flask was 477^∘C. What fraction of air would have been expelled out?

Who observed the different types of cells in plant tissue?

In an isochoric process if  will be equal to:

In Young's experiment, 70 fringes are observed in a field of vision if yellow light λ = 5800 Å is used. How many fringes would be observed in the same field of vision if violet light λ = 5800 Å is used?

Which of the following plot is correct about the kinetic energy of photoelectrons?

Which part becomes modified as the tusk of the elephant?

A naturally occurring coding strand composed of alternating C and U residues would result in the formation of: