किस IIT ने पुणे में व्हीकल्स क्लिनिक पर टीकाकरण शुरू किया है?

जैसे-जैसे तरंग की आवृत्ति बढ़ती है, इसकी तरंगदैर्ध्य पर क्या प्रभाव पड़ता है? 

Directions: In the following passage there are blanks, each of which has been numbered.

These numbers are printed below the passage and against each, five words are suggested, one of which fits the blank appropriately. Find out the appropriate word in each case. For decades, there has been evidence that classroom techniques designed to get students to ___(25)____ in the learning process produces better educational outcomes at virtually all levels.

And a new Harvard study suggests it may be important to let students know it. The study shows that, though students felt as if they learned more through ____(26)___ lectures, they actually learned more when taking part in classrooms that employed so-called active-learning strategies.
 Lead author Louis Deslauriers, the director of science teaching and learning and senior physics preceptor, knew that students would learn more from active learning. But many students and faculty remained hesitant to switch to it.

“Often, students seemed genuinely to prefer smooth-as-silk traditional lectures,” Deslauriers said. “We wanted to take them at their word. Perhaps they actually felt like they learned more from lectures than

they did from ____________ (27) learning.” The question of whether students’ perceptions of their learning ____________ (28) with how well they’re actually learning is particularly important, Deslauriers said, because while students eventually see the value of active learning, initially it can feel ________________ (29).
 “Deep learning is hard work. The effort involved in active learning can be misinterpreted as a sign of poor learning,” he said. “On the other hand, a superstar lecturer can explain things in such a way as to make students feel like they are learning more than they actually are.”

To understand that dichotomy, Deslauriers and his co-authors designed an experiment that would expose students in an introductory physics class to both traditional lectures and active learning.

When the results were tallied, the authors found that students felt as if they learned more from the lectures, but in fact scored higher on tests following the active learning sessions. Ultimately, Deslauriers said, the study shows that it’s important to ensure that neither instructors nor students are ___ (30)____ into thinking that lectures are the best learning option. “Students might give fabulous evaluations to an amazing lecturer based on this feeling of learning, even though their actual learning isn’t optimal,” he said. “This could help to explain why study after study shows that student evaluations seem to be completely uncorrelated with actual learning.”

Fill at the (27).

75 लीटर दूध और पानी के मिश्रण में कितनी मात्रा में पानी मिलाना चाहिए, जिससे कि मिश्रण में दूध का प्रतिशत 75%से 45% हो जाए?

एक कॉलेज में लड़कों और लड़कियों की संख्या का अनुपात 7: 8 है। यदि लड़कों और लड़कियों की संख्या में  क्रमशः 20% और 10% की वृद्धि हो जाती है। , तो नया अनुपात क्या होगा?