11. Consider the following statements
    1. If magenta and yellow coloured circles intersect, the intersected area will have red colour
    2. If cyan and magenta coloured circles intersect, the intersected area will have blue colour
    Which of the statements given above is / are correct ?

1. 1. 1 only

   
   
   

   2. 2 only

   
   
   

   3. Both 1 and 2

   
   
   

   4. Neither 1 nor 2

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

---

12. Consider the following natural phenomena
    1. Terrestrial heating
    2. Reflection of light
    3. Refraction of light
    4. Diffraction of light
    Due to which of these phenomena is mirage formed?

1. 1. 1 and 2

   
   
   

   2. 2, 3 and 4

   
   
   

   3. 1 and 3

   
   
   

   4. 4 only

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

---

---

13. Wave nature of light follows b ecause

1. 1. Light rays travel in straight line

   
   
   

   2. Light exhibits the phenomenon of reflection and refraction

   
   
   

   3. Light exhibits the phenomenon of interference

   
   
   

   4. Light causes the phenomenon of photoelectric effect

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

---

14. A real image is formed by a convex lens. If we put a concave lens in contact with it, the combination again forms areal image. The hew image

1. 1. Is closer to the lens system

   
   
   

   2. Is farther from the lens system

   
   
   

   3. Is at the original position

   
   
   

   4. None of the above

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: B

   N/A

---

---

15. Glass has refractive index 3 / 2 and water has refractive index 4 / 3. If the speed of light in glass is 2.00 X 10⁸ m/s, the speed of light in water in m/s is

1. 1. 1.5 X 10⁸

   
   
   

   2. 1.78 X 10⁸

   
   
   

   3. 2.25 X 10⁸

   
   
   

   4. 2.67 X 10⁸

   
   
   

---

1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

---