RRB JE practice question
Read the given statements and select the most appropriate option. Statement 1: Mirror formula is applicable to both concave and convex mirrors, provided the sign convention is followed. Statement 2: The validity of Mirror formula depends on the size of the object.
From a RRB JE Science practice set · Science
Tap an option to check your answer.
Show answer and explanation
Correct answer: (C) Only statement 1 is correct.
The mirror formula (1/v + 1/u = 1/f) applies to both concave and convex mirrors provided sign convention is correctly followed (Statement 1 true). However, it does not depend on the size of the object as claimed - Statement 2 is incorrect. Hence, only statement 1 is correct.
हिंदी में प्रश्न
दिए गए कथनों को पढ़ें और सबसे उपयुक्त विकल्प चुनें। कथन 1: दर्पण सूत्र अवतल और उत्तल दोनों दर्पणों पर लागू होता है, बशर्ते चिह्न परिपाटी का पालन किया जाए। कथन 2: दर्पण सूत्र की वैधता वस्तु के आकार पर निर्भर करती है।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) के वल कथन 1 सही है।
दर्पण सूत्र (1/v + 1/u = 1/f) चिह्न परिपाटी का सही पालन करने पर अवतल तथा उत्तल दोनों दर्पणों पर लागू होता है (कथन 1 सत्य)। किंतु यह वस्तु के आकार पर उस प्रकार निर्भर नहीं करता जैसा कथन में कहा गया है — कथन 2 असत्य है। अतः केवल कथन 1 सही है।
More solved Science questions
- The bending of a plant part in response to light is called
- _______ is defined as the ratio of total path length traveled by an object and the total time interval during which the motion has taken…
- Whose law states that at a junction in an electric circuit, the sum of the currents flowing into the junction is equal to the sum of the…
- Minamata disease, a serious neurological illness first identified in Japan, was caused by long-term consumption of fish contaminated with…
- The colour of the hair is due to-
- If two isotopes of an element ‘X’ are X-35 and X-37, the average atomic mass of chlorine (if X-35 = 25% and X-37 = 75%) will be: