Which of the following cuts ultraviolet rays?

Which of the following is incorrect regarding ultraviolet rays?

Which of the following is incorrect regarding ultraviolet rays?

Which of the following solar radiations pass through the atmosphere of earth ? X-rays, ultraviolet rays, visible light rays, infrared radiation.

Which of the following pairs constitute very similar rediations? (i) Hard ultraviolet rays and soft X-rays (ii) Soft ultraviolet rays and hard X-rays (iii) Very hard X-rays and low-frequency gamma -rays (iv) Soft X-rays and gamma -rays

Which gas of atmosphere holds up ultraviolet rays?